What absolutely made me switch from Safari to Camino at first is that it remembered usernames and passwords. The usernames and passwords are actually stored in the application Keychain. It looked at first as though it is not possible in Safari. It is actually entirely possible and the only thing is that it needs to be enabled. To enable it:

As you may or may not know in most of the web browsers you can click on a blank area and get a new blank tab. Out of the box you can not do this is Safari. To do this you need to install a plug-in(Twicetab).

Save time in Safari