Cooking him his favourite dinner, presenting him with a few of his favourite magazines, telling him I've already put out the garbage, wearing something cute, showing him my freshly epilady'd legs (hinting at what's up further), then jumping on him on the couch as he's flicking the remote control trying to decide between crappy shows on TV. Is that what you mean?
A straight up "do you wanna do it?" always works. Or touching him down below while he's sleeping then gently waking him. He doesn't know why he's suddenly in the mood but he is all ready to go. These are just a few of my methods. I hope this helps.