My favorite bath is Epsom Salt: 4 cups in very hot water for 20 minutes.
I know you did not asl for this, but found it a bit interesting.
For all you women out there..
According to Lean Marie Martin, Dr. Roger Rogers suggest that women not urinate before bathing or swimming; a little urine in the bladder helps prevent bacteria and pollutants in the water from entering the bladder and contributing infections.
She also feels that for regular baths, try not to take long hot baths. Cool, or warm for less than 20 minutes is best. Long hot baths are not healthy due to increase absorption of chlorine, pollutants, copper, bacteria that collect in pips..