Hi Everyone,
I use a large decor bucket square shape that fits in the door on the step of the van, fill it everyday with water and soap, if they are really dirty a little bit of cheap napisan, then travel, empty at lunch time at a park or where ever we stop for lunch fill with clean water and rinse, empty when we stop for the day and peg out, if not travelling just twist it using the handle or usual washing by hand. I do the undies ,sox, or whatever every day so the washing doesn't add up. When I do the tea towells etc. I add the napisan just to kill any germs and sometimes if anyone is sick I add a few drops of Detol. The Decor buckets come in pairs I think so I use the other one as a garbage with a plastic bag as a liner so they both sit on the step. This suits me I know others work differently.
Hope this helps.
barb