a lot of things can be solved by simply taking a shower. Wherever and whenever you can. Being dirty doesn't give you crust punk points or make you ride trains better. It makes you smell like shit and contract skin diseases like staph and mrsa. So the biggest thing to do is take a shower once or twice a week or whenever offered. Remember you don't lose crust punk points if you do!
washing clothing is usually the best thing you can do short of showering.