On vacation, I seem to want a new towel more often than at home. Luckily, there are usually 4 bath towels in the master bathroom, so that's plenty for me. DH is fine with his one (I need to throw his into the laundry when I think it's had enough!

) I never re-use the wash clothes, but no one else really uses them except me so, again, there is usually plenty. Hand towels are somewhat different. I always keep paper towels in the bathroom, too.
Recently, DH and I stayed 3 nights at ASMu, before checking into
DVC, and didn't want mouse-keeping. We had plenty of towels.
I don't think I've ever washed the towels in a villa, but maybe the wash clothes.
Basically, we are usually fine with the towel situation.