You probably all know about this feature already, but it's greatly improved my LJ experience, so I thought I'd mention it just in case. My friends list had become bloated with RSS feeds and communities and things and was becoming so unmanageably long that I frequently missed important posts by friends.
So, I divided the list up into Friends Groups. One for actual friends, one for pop culture news and celebrity gossip, one for pretty picture communities, and one for total time wasters (like Overheard in New York, the Onion, etc.).
It's really perfect for those moments when I just have a minute or two here or there. I can even check in during a long flight in Azeroth.
