What should be included in a creative freelance contract?

When doing creative freelance work, many pitfalls are hidden in the "could you just quickly change this for me" requests. It's fine once or twice, but after a while, you'll realize that what really drags you down isn't the big requirements, but these boundary-less minor revisions. I now write down the deliverables, number of revision rounds, source files, and rush fees in advance. The tone…