I knew someone who was like that woman's MIL. She didn't replace the hand towel and washcloth, but she used two towels at each shower and after one use, they went into the hamper. Guests, regardless of their own normal towel usage, did the same. She was telling me that she realized she spent a ton of money on detergent, laundry related costs, but that she also bought a lot of towels because they wore out so fast. I'm as crazy as the next person, and I like to be clean. But taht goes above and beyond. She said she did it because after one use they smelled mildewy. Um, okay.