My Wife is a retired RN so we carry more than most. If you go beyond the basics consider breaking up your supplies into multiple kits. I think we have 4 in our B camper. We keep a small basic kit in the front of the van within reach quickly. There are two in the bathroom that have other items and a 4th we hope we will never need in an under bed storage area. Other that the basic one up front there is a list of what they contain so you only need to open the one that has what you need. So far as what is in each, my wife knows and I can read.