There's another great thread at the moment about towel age, with some people still using towels that are 30-40 years old.
I wonder how the two factors work out in practice. Does washing delay or hasten dilapidated towels?
I know that only using a towel once is bad for the environment but surely there is something reasonable between 1 time and 3 months? I think a week is good, although guest/hand towels need to be washed more often if they are being used for washing hands after going to the loo.