Aha! I knew I had seen instructions on how to change the location of My Documents, and I finally remembered where.
http://www.modthesims2.com/article.php?t=53400What I wish for, and haven't seen, is a way to take the EA Games folder out of My Documents, so My Documents would only be used for stuff like, yanno, my documents. It would make it a whole lot easier when I want to backup everything
except Sims.