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I'll say 1Password and The Hit List (both OSX software). They are totally worth the money.

I've been using Wallet (http://www.acrylicapps.com/wallet/) on my Mac and iPhone instead of 1Password.

It might be a little less featured than 1Password, but it's also half the cost on the Mac and AU$1 cheaper on the iPhone.

Seconding 1Password - a big game changer for me.