I have a friend who wants to sign up for livejournal, and asked me about ways to use it.  Things like backgrounds and such.  I know nothing about LJ except how to post.  I still muck up the LJ cuts and it takes me a few tries sometimes to get them right.  I was wondering if some of my more savvy friends wouldn't mind sharing the basics here, simply, and helping my friend get a basic understanding.  Thanks.