When we have visitors they get handed the bedclothes to put on the pillows and duvets themselves. When WE visit we take our own pillowcases and duvets with us - they have only to provide the pillow and bottom sheet.
When we have visitors we eat out or do raclette - OK, I know we can afford it but if they help I'll eat at home. If I don't think I can manage - I say so. One adult couple visiting is one thing - the whole tribe? NO. If they want a free bed - and I'm fairly happy to provide that - they can contribute in other ways. I am not a free hotel service and the kettle and requisites are pointed out.
We saw what having the family to stay did to my MIL and husband when he had heart trouble so we always stayed with a friend or in B&B. He enjoyed seeing the grandchildren and we didn't have to worry about keeping them quiet all the time. David's brother once stayed in a caravan (far more money than us so why I never understood) and went to his mother's for all meals! Which rather spoiled the point I felt!