You can't really successfully teach a rabbit not to chew on things. Whether you like it or not, they will chew - chewing is normal. You need to make sure all electric wires are covered(google search: rabbit proofing your home), you need to make sure there's no potted, toxic plants within reach, you need to make sure they can't get into any medical pills you have laying around, and you need to be careful of WHAT she eats. I had a rabbit die, I'm pretty sure, of intestinal blockage from nibbling on a blanket and swallowing the pieces.
It may seem like a lot, but once you'd rabbit-proofed your home, the worst of it will be over. Flemies get huge, so having a free-roam rabbit is an excellent idea. Although, general consensus agrees to cage your rabbit when you're sleeping, or out. Even if it's not caged, even if you like... close him in the bathroom, with the toilet seat down. Oh yes - that's another thing.... You must make sure the toilet lid is down. Rabbits can drown from hopping into a toilet and being unable to get back out.
EDIT: *wags finger at Jess* You...you... stop it! Stop sending your posts JUST before I send mind, and STOP stealing my brain waves! Lol.