John Kelly of the Washington Post had an amusing article today about how much trouble it is to create a new password every 90 days:
So Many Passwords, So Little Time
Hopefully John will find LastPass and put these troubles behind him -- using LastPass' Password Generator he'd be able to specify that uppercase, lowercase, numbers and special characters are required; generate it with a click and never have to remember what it was. LastPass takes care of the rest.
The title actually speaks to the exact problem LastPass solves: one last password to remember and you can forget all the others.