TheNaze is right, it's hard to comment without knowing your starting point, and of course what you like.
Even if, like me, you're not hugely into the idea of toys, bondage, etc. there's still loads you can do to make things that little bit hotter.
Why don't you try jumping your OH's bones somewhere other than the bedroom? You could straddle him on the sofa, start snogging on the stairs, or something like that. Failing that, move your bedroom mirror so it's aligned with your bed. I find watching us DTD really intensifies things.
What about talking dirty to him, or would that be too embarrassing? You can't go wrong moaning something about his cock (how good, hard, etc. it feels).
Otherwise, blow jobs? You could change it up a bit from how you usually do them, so extra sloppy, ball-licking, lots of eye contact - whatever's different from the norm.
What about sexting your husband during the day? In the past, I've had partners who texted me details of what they intended to do with me later, and that was a hugely exciting.
Good luck OP. Hope you have fun.