Go to the library and get "Financial Peace" by Dave Ramsey. That's where I started. And, oh boy, I have taken it SO much further. I make my own bread. Grow my own food (to save AND for the unparalleled TASTE AND I know exactly where my food's been). I buy only from Goodwill or consignment stores (you wouldn't believe how much "new" stuff there is - tags and all - for a fraction of the retail cost. I use the "envelope system". At the beginning of the month, I take out $770 from the bank. $400 is for groceries (for my husband and I), $300 for gas (we both commute but the trade-off is that we live in the country with acreage), and *blush* the rest is for beer and wine to have with dinner. We try not to ever go over that. We have a debit card, but try not to use it - if you can't see the money, it's a little easier to spend it. If I don't have the cash, I simply don't spend it. We got rid of our credit cards long ago.
Finally, I use the $1 system. Every time I have a $1 bill in my wallet, I empty it and put it into a jar. I don't check the jar and try not to ever use the money from it. After a year, I check the jar and I'm always pleasantly surprised at what I've saved. We use that for a mini-vacation somewhere. :)
Hope that helps.