See, this is where it's good to be an American, where you can employ Benjamin Franklin's aphorism of "Fish and visitors stink after three days." XD You deserve a special award and a week alone (preferably somewhere grandiose, like a secluded cabin on the edge of a canyon, whatever your pleasure) for putting up with relatives for nine weeks straight.

Re: duvet covers - my aunt once gave me a catalog of bedding before I got married, encouraging me to pick something I liked. She meant well, but the price averaged about $100 for one sheet, and that was unacceptable even for a present. Plus, everything had frills and scalloped edges. The horror.