Roboform.
I'm surprised noones mentioned it yet, it has got to be the best by far of the utilities out there. I have almost 300 passcards (passcard= url/login/password) that it takes 1 click to go to a site and login.
It will encrypt in DES and 3DES (and AES, BlowFish, and RC6 in the 6.5 beta.) Far superior to what the brain can store reliably...
It has an excellent password generator as well, which many of mine are >15 characters, mixed letters/numbers/caps as well as non-standard characters.
Also, it has 'Identities' for one-click etailer checking out...fills in your address, credit card you'd like to use, phone number etc.
Works in IE browsers as well as mozilla browsers, and can run on a thumb drive or palm pilot ($10 extra for palm) etc.
Its the most valuable time-saving utility I've ever used, and is worth far more than the shareware price of $30.
That ends this commercial announcement! (seriously tho, the proggy if for real.)