Date Night with the OH

Me and my OH have "Date Nights" with each other every month or so just to keep things fresh. I don't mean going out to a restaurant, I mean we do at home, like I cook her her favourite food or she makes me a picnic in the lounge and wears something a little sexy etc.

Who else does this, and can you give me some new ideas as I'm struggling for inspiration this time round?....we're not oppose to a little roleplay if necessary. ;)