My MIL is coming to stay tonight and has already advised me that she is bringing a sheet and pillowcases so that I won't have to change the duvet after she leaves! I assured her it was no problem, but now that I think about it, the last person to stay was SIL (her daughter) and SIL will be staying again in a week.
Since I wouldn't mind sleeping on my mother's sheets and vice versa, AIBU to leave them in place?
Or should I just get her bloody son to take care of things and change the sheets twice? ;)