I agree solar showers are really great as long as you plan in advance to get the water warmed up and it's OK with the campground.
I remember long ago when I was camping at keystone state park just outside of Tulsa, Oklahoma in the summer time. Back then I was traveling and camping doing the Goldwing Motorcycle and small pull trailer deal. I got there on a Wed so I had the whole first row to myself which was on the high side of the property overlooking everyone else. There was alittle rock wall on the back side of my space that made for a perfect shower stall. It even had a rock bottom that drained away and the little ledges for the shampoo, soap, and everything, it was as if Jesus himself bathed there and created it just for him
Since noone was around I set up my solar shower and in no time it was ready to go. I stripped and about half way through my wonder private shower some new neighbors pulled up (a man as his wife)in the slot next door to me, and there I was in the buff having a wonderful nature shower lol I went to cover myself and the man rolled down his window and yelled "as you were, your not bothering us" so back to it i went while i watched them set up
how to shower when camping. Solar showers dont last long but boy hot water sure makes all the difference, especially in attitude, and after a long day on the bike just awesome.
Here is how I used to travel