Mmm, baths. Long, hot bubble baths with lavender Epsom salt, a few candles, a honey/olive oil mask, tea or ice water. And maybe some background music for ambiance. It's easy to relax in baths (my dad takes baths too - he's able to go into a full meditation that way). I feel more relaxed and able after a bath.
With a shower, it's like you're rushed to get stuff done. And the water sometimes feels so harsh, I like having control of the softness of the water I'm in. That said, if it's a hair washing day or a hard labor day, then I do take showers.
Bath luxury, though. Can't deny that bath luxury.