+1 on the combo washes. Heredity (and lazy hair follicles) has blessed me with a near-perfect head, so I don't worry too much about shampoo. I keep liquid soap/wash, razor, shaving cream, towel, etc. at work in my cubical (also dress shoes & belt) and stop in to cool down, put lunch in fridge, etc. before heading to the small locker/shower area at work (also a no overnight storage policy). If I had to carry it all, I'd use refillable travel size containers, a packable microfiber towel, and cheap flip flops for the shower shoes.