It depends how often you change your clothes, or (if you're a girl) you're on your period, (if so, probably every day) but i suggest at least once every couple of days.
daily
Every day.
every day or night
Dogs usually don't take showers. When their human bathes them, the human decides how long the dog should be in the bath or shower.
At least every other day.
ONE
Shower cartridge replacement should be done every 6-12 months to maintain optimal performance and water flow in the shower.
everyday when you shower right after you put shampoo in it
every day
Every other day or every day
The changing cartridge in the shower should be replaced every 6-12 months to maintain optimal performance.
You should recaulk your shower every 1-2 years to maintain its integrity and prevent water damage.