At least every other day.
daily
every day or night
Every day.
ONE
every day
everyday when you shower right after you put shampoo in it
Every other day or every day
Every day or every two days.
at least every other day
Yes and shower. Lots of germs in gyms and work out areas
If the shower curtain is in bad shape then it need to get replaced ASAP. Shower curtains are very cheap. If people go somewhere like a dollar store they can get them for one dollar.
Every Single Day and twice if active. Every day.