watch porn....
OR clean the house and do laundary, dishes, bathrooms, shit like that. Go find 2 Tylenol, when she hits the door tonight, hold out your hand, she'll ask "what's that for?" you say, "your headache", she'll say,"I don't have a headache", "good! I already cleaned the house and did the laundary so let's get nekkid and screw...."
See I have to resort to things like this, hopefully you don't have to, but if it'll help, there's your suggestion....