I have a stack of towels in the bathroom closet so I always have a clean towel ready to use.
I then place the dirty towels after one use in a clothes basket and then once it gets full I wash the towels separately from the other clothes.
So my towels get washed every few weeks but I always use a fresh clean towel everyday when drying off after taking a shower.
Everyone in my family who showers gets a fresh clean towel because I can't stand to use another towel that someone has used even if they are family.
I always love to use a fresh clean towel for myself and I'm sure my family and kids prefer to use a fresh clean towel as well.
Some people may only wash their towel after using it 7 times but for me I always have fresh towels everyday for our showers.