That depends on a few things: how tired or adventurous we feel, how much time we have, and what sexual mood we're in. We usually just go with the flow.
We tend to cover about 5 positions per session -- Cowgirl, reverse cowgirl, doggy, and a few variations of missionary (meaning we're facing each other).
We've covered cowgirl, reverse cowgirl, wheelbarrow, doggy (legs open and closed), something I call "ironing board" (doggy but both bodies flat on a bed), jackhammer, missionary (with legs in many positions), scissors, spooning, different angles, stances, props with each, etc...:wink:.