I have a 2 step system. First I take a shower with soap and wash my hair if need be. Next , I pin my hair on top of my head and take a bath using either bath salts or bath oils.
Wish I had one of those old claw foots! They were big and more comfortable. I used to fall asleep in it! If I had a tub with jets, I would use it but I am usually in and out the shower real quick.
I mostly take showers but once in awhile I like a bubble bath. When I was a teen back in the 50s I used a bath oil called Sardo. It had the most wonderful scent and also left the most greasy,oily residue known to man. My mom hated the stuff and anyone taking a shower after I came out risked landing on their head. When I think back I wish I had cleaned up after myself to help my mom out. It never entered my mind. Now I know how much it would have been appreciated.
To answer your question....showers only. Have a garden tub, just taking up space.
Twice a year if I need it or not!!!