Beauty,
Your ideas for retaliation made me laugh. I would never do such things either. But, if you want to really smile, look at the pictures in this article of what spouses/girlfriends have done to their WAS: http://www.cheatingspousepi.com/cheating_spouse_tips/ (just for a few smiles, I don't approve of this in any way!)

The lies are hard to deal with. They make you so mad. Just remember they're living a fantasy and will do anything to get their fix. But maybe he does want you to catch him -- that does happen. Maybe he's too chicken or guilty to tell you himself. Good for you for holding your anger. If you do feel the need to confront, gather your words and thoughts before hand so you're in control of the situation.

Joie