Just play an innocent game. No need for more chores, and no need to rely on sex as the only other option. What sort of game - something innocent and simple, and preferable verbal. Not twister or Mouse Trap or Monopoly etc.
Even something as 'boring' and 'simple' as I-Spy, or 'What's your favourite...' (where you ask what their favourite, say, country is and why, then you answer, then it's their turn). Something nice, friendly and only semi-intimate that will generate a few laughs is a really nice way to wind down.
But, as I said in another thread the other day, I'm a hopelessly soppy romantic, and it's not cool to suggest such crap ideas. I'm ready for the pisstakes.