head: small bottle of diluted clarifying shampoo. pour some into a big plastic cup. do not apply directly to head. pour diluted solution over head and rinse using the same cup. towel dry.

strip naked. use a wash cloth and bar soap but not too much soap. hit the important areas like face, under arms and balls, maybe your chest too. rinse wash cloth and repeat. towel dry. the key here is that you showered at home before your ride so your body bacteria is very low and all you are doing is cleansing the new sweat. be sure to do this immediately upon arriving at destination.

dress in all fresh clothing head to toe. put used clothing in plastic bags and stow. for the ride home dress with a clean set of clothes. managing the laundry should be your biggest challenge.