Option+Click Airport Reveal: Option+Click on the Airport symbol in your finder bar gives you detailed info on your WiFi connection, including connection speed and transmit rate.

Dictionary Reversal: If you told your dictionary to learn a word, like a company name, while you were writing for business, you can tell it to "unlearn" the word later in Leopard. Just right click on the word and select "unlearn" as your option.

Folder Sharing: Highlight your folder and click Command+I to pull up the sharing window on the fly and allow people on your network to see your work.

Permanent Delete (Time Machine Files): Clicking the "gear" icon in "present view" while the file you want to delete is selcted in Time Machine takes you to an option to delete all Time Machine backups of the file.

Completing The Print Cycle: Leopard keeps the printer icon open in the dock after a print cycle completes, for some reason. To go back to having it quit once the print job is done, right click on the printer icon in the dock and select Auto Quit.

Stack Recent Things In The Dock: If you are not comfortable working in Terminal, skip this one. If you are, go to Terminal and enter defaults write com.apple.dock persistent-others -array-add ‘{ “tile-data” = { “list-type” = 1; }; “tile-type” = “recents-tile”; }’ - then you do a KillAll Dock command (this resets your dock) and you should see your stack of recent items.

See Where Your File Is Stored: Under the "View" menu in thefinder bar you can use "View Path Bar" to see exactly where the file you are looking at is stored.

Move Your Window To Any Space: Just drag it to the side of your screen and wait a moment. Leopard will add it to your Spaces.

Want more hints? See the Official Apple 300 Leopard Hints page Here.

If you have been wondering if your shortcut keys have changed in Leopard, Using Mac took the time to find the answer for us all:

Shortcut Keys:

1 Cmd-C Copy files

2 Cmd-V Paste files

3 Option-Drag Copy files to new location

4 Cmd-Drag Move and auto-align icons

5 Cmd-Delete Delete

6 Cmd-Option-Drag Make alias

7 Cmd-Shift-Delete Empty trash

8 Cmd-Shift-Option-Delete Empty trash without warning

9 Tab Select next field

10 Shift-Tab Select previous field

11 Return Perform default action

12 Escape Close dialog box

13 Page Up Scroll up list

14 Up Arrow Select item above

15 Page Down Scroll down list

16 Down Arrow Select item below

17 Cmd-Shift-G Open 'Go to Folder' dialog

18 Cmd-Period[.] Close dialog box

19 F8 Toggle Space

20 Shift-F8 Toggle Space in slow motion

21 F9 Show all open windows

22 Shift-F9 Show all open windows in slow motion

23 F10 Show all open windows for an application

24 Shift-F10 Show all open windows for an application in slow motion

25 F11 Hide all windows

26 Shift-F11 Hide all windows in slow motion

27 F12 Open/close Dashboard

28 Shift-F12 Slowly open/close Dashboard

29 Option-Mouse Hover Reveal the close button of widget

30 Shift-Click Close Button Animate closing widget in slow motion

31 Cmd-H Hide application

32 Cmd-Option-H Hide other applications

33 Cmd-Q Quit application

34 Cmd-Shift-Q Quit all applications and log out

35 Cmd-Option-Shift-Q Log out without warning

36 Cmd-Tab Switch to next application

37 Cmd-Shift-Tab Switch to previous application

38 Option-Drag Adjust volume (on sound volume slider)

39 Cmd-Drag Arrange menu bar items

40 Option-Click Switch window and hide current window

41 Control-Click Open contextual menu

42 Cmd-Control-D See word definition (with mouse hover)

43 Cmd-Period[.] Stop process

44 Cmd-Option-Escape Open Force Quit

45 Power Key Turn off

46 Cmd-Option-Shift-Power Key Force shut down

47 Cmd-Control-Power Key Force restart

48 Control-F1 Turn on/off full keyboard access

49 Control-F2 Focusing menu bar

50 Control-F3 Focusing Dock

51 Control-F4 Move to next window

52 Control-F5 Move to toolbar

53 Control-F6 Move to a floating window

54 Control-F7 Toggle keyboard access mode

55 Control-F8 Focusing status menu in menu bar

56 Cmd-Accent[`] Switch to next window within application

57 Cmd-Shift-Accent[`] Switch to previous window within application

58 Cmd-Option-Accent[`] Move to sidebar

59 Cmd-Option-T Toggle on/off character palette

60 Cmd-Click on Title See the path enclosing folders

61 Cmd-Double-Click (on folder) Open folder in new window

62 Option-Double-Click (on folder) Open folder in new window and close current window

63 Cmd-1 Switch to icon view

64 Cmd-2 Switch to list view

65 Cmd-Option-Right Arrow Expand folder

66 Left Arrow Close folder

67 Cmd-Down Arrow Open selected folder

68 Cmd-Option-Down Arrow Open selected folder in new window and close current folder

69 Cmd-Shift-Option-Down Arrow Open selected folder in new window and close current folder in slow motion

70 Cmd-Up Arrow Show enclosing folder

71 Cmd-Option-Up Arrow Show enclosing folder and close current folder

72 Cmd-3 Switch to column view

73 Cmd-4 Switch to coverflow view

74 Cmd-Y Toggle Quick Look mode

75 Cmd-Option-Y Toggle Slideshow mode

76 Cmd-Shift-H Open home folder

77 Cmd-Option-Shift-Up Arrow Move focus to Desktop

78 Cmd-Shift-I Open iDisk

79 Cmd-Shift-D Open Desktop

80 Cmd-Shift-C Open Computer area

81 Cmd-Shift-K Open Network

82 Cmd-Shift-A Open Applications

83 Double-Click on Title Minimize window

84 Cmd-M Minimize window

85 Option-Click on button Apply action to all windows in active application

86 Hold-Scroll Bar Scroll quickly

87 Cmd-Spacebar Activate/deactivate Spotlight

88 Cmd-Option-Spacebar Open Spotlight window

89 Cmd-Return Open the top hit

90 Cmd-Down Arrow Move to next category

91 Cmd-Up Arrow Move to previous category

92 Cmd-Click Open selected item in Finder

93 Escape Close Spotlight

94 Cmd-Shift-3 Take snapshot of the whole screen

95 Cmd-Shift-4 Take snapshot of the selected area

96 Cmd-Shift-4-Spacebar Take picture of a window

97 Escape Cancel

98 Hold Spacebar after Drawing the region Move the selected area

99 Hold Option Resize selected area

100Hold Shift Resize selected area horizontally or vertically

101 Drag the separator Resize Dock

102 Option-Drag Resize Dock to fixed size

103 Control-Click Show Dock's contextual menu

104 Control-Click on icon Show item's contextual menu

105 Cmd-Click Open the icon's enclosing folder

106 Option-Click Switch to another and hide current application

107 Cmd-Option-Click Switch to another application and hide all other applications

108 Cmd-Option-Drop Force application to open files

109 Cmd-Option-D Hide/unhide Dock

110 Cmd-Option-8 Turn zoom on/off

111 Cmd-Option-Equal[=] Zoom in

112 Control-Scroll Up Zoom in

113 Cmd-Option-Hyphen[-] Zoom out

114 Control-Scroll Down Zoom out

115 Cmd-Option-Control-8 Invert color (try this on those iMacs in Apple Store)

116 Control-Option-Cmd-Comma[,] Reduce contrast

117 Control-Option-Cmd-Period[.] Increase contrast

118 Cmd-F5 Toggle VoiceOver

119 Shift-Shift-Shift-Shift-Shift (5 times) Toggle Sticky Keys

120 Option-Option-Option-Option-Option (5 times) Toggle mouse keys

121 Shift Prevent automatic login

122 Shift Enter safe mode (hold down after startup tone and release after you see the progress indicator)

123 Shift Prevent opening Login Items (after login)

124 C Boot from CD

125 N Boot from default NetBook disk

126 T Start up in Target Disk Mode

127 Option Select startup disk

128 Cmd-X Start up using Mac OS X

129 Hold Mouse Button Eject removable discs

130 Cmd-Option-P-R Reset parameter RAM

131 Cmd-V Verbose mode (detailed status message)

132 Cmd-S Single user mode

133 Cmd-Option-F Move to Google Search Box

134 Option-Up Arrow Scroll Up

135 Option-Down Arrow Scroll Down

136 Cmd-Click Link Open in new tab and stay in current tab

137 Cmd-Shift-Click Link Open and go to new tab

138 Cmd-Option-Click Link Open in new window

139 Option-Click Close Button Close other tabs

140 Cmd-Shift-] Select next tab

141 Cmd-Shift-[ Select previous tab

142 Cmd-Shift-H Go to homepage

143 Cmd-Shift-K Toggle Block Pop-up Windows

144 Cmd-Option-E Empty Cache

145 Cmd-Option-R Reload page without Caching

146 Cmd-F Search term in webpage

147 Cmd-M Minimize Safari

148 Shift-Click Button Animate slow motion effect

149 Cmd-Plus[+] Increase font size

150 Cmd-Hyphen[-] Reduce font size

151 Cmd-0 Original font size

152 Return/Space Play

153 Option-Right Arrow Select next album

154 Option-Left Arrow Select previous album

155 Cmd-Right Arrow Play next song

156 Cmd-Left Arrow Play previous song

157 Option-Click on Shuffle Button Reshuffle

158 Cmd-Option-Down Arrow Mute

159 Cmd-E Eject CD

160 Cmd-T Turn on/off visualizer

161 Cmd-F Turn on/off full screen mode

162 Cmd-1 View iTunes window

163 Cmd-2 View equalizer mode

164 Double-Click Select word

165 Triple-Click Select line

166 Drag item to Terminal Add the complete path to that item

167 Cmd-N Create new shell window

168 Cmd-Shift-N Enter new command

169 Cmd-Shift-K Connect to a server

170 Cmd-Option-S Save text

171 Cmd-Option-Shift-S Save selected text

172 Cmd-I Show terminal inspector

173 Cmd-T Create new tab

174 Control-C Break

175 Cmd-N New message

176 Cmd-Shift-N Get new mail

177 Cmd-Option-N Open new viewer window

178 Cmd-0 Open activity window

179 Cmd-Shift-Y Add senders to address book

180 Cmd-E Use selected text to find

181 Cmd-C while selecting message Copy entire text of a message

182 Cmd-Click on upper-right corner toolbar button Switch different toolbar display

183 Cmd-Single Quote['] Increase quote level

184 Cmd-Option-Single Quote['] Decrease quote level

185 Cmd-Shift-E Redirect message

186 Cmd-Shift-F Forward message

187 Hold Option when deleting message Prevent next message from being automatically marked as read

188 Cmd-Shift-R Reply to all

189 Cmd-Shift-B Bounce to sender

190 Cmd-Shift-T Convert message to rich text or plain text

191 Cmd-Left Brace[{] Align left

192 Cmd-Vertical Bar[|] Align center

193 Cmd-Right Brace[}] Align right

194 Cmd-Colon[:] Check spelling

195 Cmd-Semicolon[;] Flag misspelling of selected word

196 Cmd-Esc Open/close Front Row or return to previous menu

197 Spacebar, Return Select item in a menu

198 Up Arrow, Down Arrow Change volume

199 Right Arrow, Left Arrow Go to next or previous selection

200 Cmd-1 View card and columns

201 Cmd-2 View only card

202 Cmd-3 View directories

203 Cmd-Right Bracket[']'] Next card

204 Cmd-Left Bracker['['] Previous card

205 Cmd-Vertical Line[|] Merge selected cards

206 Cmd-Backslash[\] Set as company card

207 Cmd-Shift-M Edit in ImageReady

208 Cmd-Option-W Close all

209 Cmd-Option-S Save as

210 Cmd-Option-Shift-S Save for Web

211 Cmd-Option-Shift-I File info

212 Cmd-Option-P Print with Preview

213 Cmd-Option-Shift-P Print one copy

214 Cmd-Shift-F Fade

215 Cmd-Shift-C Copy merged

216 Cmd-Shift-V Paste into

217 Shift-F5 Fill with color

218 Cmd-Shift-T Transform Again

219 Cmd-Option-Shift-K Show keyboard shortcuts

220 Cmd-L Adjust levels

221 Cmd-M Adjust curves

222 Cmd-B Adjust color balance

223 Cmd-U Adjust hue/saturation

224 Cmd-Option-C Change canvas size

225 Cmd-Shift-N Create new layer

226 Cmd-J Layer via copy

227 Cmd-Shift-J Layer via cut

228 Cmd-Option-G Create/release clipping mask

229 Cmd-G Group layers

230 Cmd-Shift-E Merge visible

231 Cmd-Shift-I Select inverse

232 Cmd-Option-A Select all layers

233 Shift-F6 Select feather (Cmd-Option-D has been assigned to hide Dock)

234 Cmd-Option-V Filter vanishing point

235 Cmd-Plus[+] Zoom in

236 Cmd-0 Fit on screen

237 Cmd-Option-0 Display actual pixels

238 Cmd-Single Quote['] Show grid

239 Cmd-Semicolon[;] Show guides

240 Cmd-R Show rulers