BRAZEEBRA  1Password has, for me, progressed from a useful keychain-on-steroids to a full-fledged password application that can span my home mac, my work mac, and my iPhone. I use it and rely on it every day. There are two applications that I always miss when I work on other macs, and 1Password is one of them (Quicksilver is the other). 1Password on my iPhone helps this issue out, though.

The interaction with Dropbox is another benefit. This is a very well-sorted application, and the development has continued to add value to the proposition.  
(Version 2.9.19)