I keep a stack of washcloths, a bottle of deodorant, and a stack of fresh shirts at work which I bring in when I have to drive because of some schedule snag. Getting a few wrinkle-resistant shirts is another way (they are not cheap, but if you roll them up in your panier and take care to put them on top they look fine). Cooling off before wiping down with washcloth helps. Short hair helps, too, to keep it from looking messed up (I'm female but love how easy it is!). Hope this helps!