Grin and bear it DG. (And bite your tongue as necessary?)
I've got it lucky I guess. My PILs will come and stay at a nearby B&B (we got rid of the spare bed to make room for LO's stuff). They will probably try to do too much to help around our house (this is the thing I do have a problem with and get v.stressed about, the continual need to do things or buy things for us, or to try to solve all our problems. Maybe I'm just an ungrateful cow?) but will help fix the door on LO's room and move some bookcases from upstairs to down, so that'll be great. And they'll babysit on Sat night and for a couple of hours on Sun too. So I should be very thankful overall, and quit moaning about them wanting to help.