I use three items, 1 coleman hot water system, 1 bucket and 1 12 volt shower, as I love a private shower, and also when washing my hair the ability to turn shower on, wet down, turn shower off soap up, turn shower on wash off and then turn shower off and condition my hair and then turn shower on and rinse out, I normally use between 2 and 4 litres of water using this method.
Also means that I dont scare other campers away with my naked body standing next to the coleman hot water system
and before some smartarse asks No No Photos
Cheers,
Pat