I haven't done that with any other site, but on Facebook recently I did click the box that says 'Stay Logged In' or something like that. I don't want it anymore, but I can't figure out how to get it back to normal. Anybody know how? Thanks.
You would have to clear out your cache and dump all the associated cookies with Facebook. At which time you could go to Facebook's main page, log in, but do not use the "keep me logged in"(leave it unchecked).
The only problem with that is that you will most likely have to sign in and out. Not to mention, the browser store your password unless you remove that, which I'm not exactly sure how to go about doing that, but don't think you want to do that anyways.
Okay, I did that last night and found out I have apps I don't want. Don't want any apps. This morning I checked and -- voila -- the automatic sign in info is now outdated. Nobody can get in without my new password. Thank you very much.