I agree that sponge baths are great when it is freezing outside. A nice pot of hot water and a washcloth can really freshen ya up. I happened to have a paint
roller tray tucked away in the old boat and found they make a good foot wash. On a smaller boat, after your sponge bath, put the soapy water in the paint
roller tray (disposable insert, i reuse) and give the the feet a good scrub in the cockpit
. A courtesy rinse, dry, and back into some fresh wool. These things can make a big difference on a long, cold adventure.
On my 30 footer I used sun showers in the warm weather
, sponge bath in cold weather
. My new boat has pressure water and a cockpit shower. If you have pressure water and the tankage, a cockpit shower is a real nice feature. Hot water is nice, so if you did not have that on the boat a sun shower is the way to go.