^^ good suggestions from everyone.
My additional $0.02:
If you feel like being a Wal-Martian, they got a cheap 'solar shower' for $5 if I remember correctly.. I'm sure other camping places would have it too.
It's a 5 gallon water bladder with black backing and a ball valve. Go to the hardware store and get a little longer hose, strap it to your vehicle's roof rack boom you got yer self a somewhat respectable 'camp' shower.
Also great for carrying additional potable water.
Rolls up fairly compact and has a hook so you can fix it to a tree or some other object. Makes it suitable for even those traveling on foot.