What can I do to drive him crazy in bed?

Alright, my beau and I have had the most incredible sex of my life. Like since we met, every day, sometimes multiple times a day. And I know he's still sexually attracted to me and we always try new things and we are totally comfortable with each other. But, I love seeing him crave me in new ways. I was curious of what you guys do to drive your man wild in the bedroom. What do you do to totally turn him on? We don't have a problem with sex at all, but I want to surprise him with new things and just totally blow his mind! Thanks guys!! Xx