Things like missing bookmarks or savedpasswords (try logging into your bank account without them) forced me to work harder at things that were usually just a button press away.
All of my documents (including work, school and personal), my music, my photos and a majority of my social life in Facebook, Twitter and email passwordssaved on my browser.
Safari also remembers the passwords you enter at sites, and will even let you see all the ones you've saved in one place -- no asterisks involved -- once you've entered your Mac security credentials.