Friends list categories or folders

I always wanted a way to divide people on my friends list into categories..be able to put them in 'groups' which have an expanded view the way folders do. That way I can group, friends, business acquaintances, and various other people I know for different reasons into categories that will be easier to manage. Anyone else want something like that?

Previously suggested, I'm sure I could point you to existing threads, but that's what the search tool is for. I believe they're called "friends list groups" too.

Ah ok thanks.