One tip: Before running CCleaner, click on "Options" in the upper right of the CCleaner window and protect any cookies you want to keep. This is easy to do :)
I second that recommendation. Some anti-spyware programs have this functionality built in too.
ccleaner has changed (on version 1.22.142) and the cookies option is now a tab under the options menu. There's also a feature to check for updates when it runs.
You can also clear the list automatically every time Windows exits by using TweakUI (part of PowerToys for Windows XP) - get it here, install it, open it, choose Explorer, check Clear document history on exit , click Apply.
I just downloaded it after reading this thread; I ran the program, it cleaned my system, and when I wanted to go back to this thread to write that I liked the program I couldn't get in because the ADT cookie had been deleted (I know that I can decide which cookies to delete, but I overlooked the one from ADT)
I actually did that first, and then I went to the settings page and unchecked some cookies and ran the program again, but I forgot to uncheck the ADT cookie
Thanks for the ccleaner link I installed it & unchecked cookies right away, because you know, I need my cookies & I'd be lost without them, but by precaution I still went into "settings" & put ADT on the cookie-to-keep list, and whaddayaknow I had to log in again at my next visit. Could be just a coincidence, because i went into my "temporary internet files" into "internet tools", and all my cookies (myriads of them) were still there at the bottom of the page. I checked my yahoo group page to verify I was still cookied there & no problem, it recognized me. Maybe just a glitch...