I use a range box from centerthegroup. com.
Top shelf, shooting glasses, sweat band, timer, sight zero book, pens, machanical pencils with spare leads, lens pen and a cloth to clean my glasses. Spare handstop, and molded ear plugs.
Main compartment, sight box, score book, elbow pad, shooting glove, metric allen wrenches, weather writer, folding ear muffs, 1 MTM 50 box of ammo.
If I am going to a major competition there is a tool box in the truck with just about everything and then some for gun repair.
If I am going out skeet shooting for the day, shooting vest, glasses, hearing protection, shooting gloves. About the only tool I take is a pocket knife.