With the floor time, although it might be annoying for you, it's great for him as it is developing his head/neck muscles. There will be a time he enjoys (or at least tolerates) being on his tummy for longer periods..DD is at this stage now.

With sleeping, until he figures out how to roll the other way, or again tolerate being on his tummy (DD half the time goes to sleep on her tummy now), can you get one of those safe sleeper things? If you don't know what I'm talking about, it's a bit of material with two rolls at either end which you place bub in between so they can't roll over. He may just figure out he can squiggle down/up past it and roll over anyway..lol.

It will pass soon though, so I'd forget about the housework for now