Tub in shower-kids can splash and "swim" as much as they want! This is a brilliant idea for adults too. Whenever I take a bubble bath I end up wanting to shower off at the end. This way you can just step out of the tub and shower off.
Keep this in mind if you start seeing lots of spiders around your place. Natural spider killer or preventer... take one cup of vingar, one cup of pepper, a teaspoon of oil and liquid soap. Put it into a spray bottle and spray along the outside of your outside door and along windows; refresh after it rains.