I wouldn’t be without 1Password now. Use it to manage all of my passwords, and have the Mac and iOS apps. Something like 280 accounts in there at the moment.
Browsers extensions make it very slick to use on Mac, and the iOS app isn’t bad at all either; although there are a couple of improvements I’d like to see to the iOS app. They encrypt all your data (256-bit, IIRC) as well, it’s nice to have that extra layer of protection (I wouldn’t use it if they didn’t, actually). Not used it on windows, but I can’t recommend it highly enough. Been using it for about five years without any issues now.
Just for note, lastpass is “cloud” password storage. So, you can access your passwords from anywhere with a browser and t’internet.
Just so others knows, you can also do this with 1Password. If you sync using dropbox, you’ll find an index.html file in the 1Password folder. Open this up via the dropbox website and you can login to an interface similar to the desktop application to access all of your passwords.