Originally Posted by SnoopZ

Good advice.

Also to note if you don't want your login details deleted from sites when you're using Firefox then you need to untick saved form information which you'll find under applications/Firefox Mozilla in the CCleaner options. I believe the same applies to Internet Explorer but the option to untick is called Auto Complete Form History. The Opera browser isn't effected as the login details are stored in its inbuilt Wand.