I'm taking a trip and will be renting a power chair. I travel with my own manual chair that is customized for me and has a decent seat cushion. Last year on a trip, I sat more than usual and spent a lot of time in a rental power chair. I had never experienced pressure points or sores before. One day I had to be riding in the chair for hours and after about an hour, I was in a lot of pain and when we looked, I had a very red area on my bottom. There wasn't much we could do until we arrived at our destination hours later. My husband tried to adjust my position by propping towels in the chair but it was little help. What can I take with me that wouldn't take up too much room and I could use on different types of seats? I'll also know to check for pressure points daily so it never gets that bad again. This was a new experience for me and one that I don't want to repeat! Thanks for any ideas.