What do you keep in your car for emergencies?

Hydraulic jack, battery impact wrench, break over bar (in case the impact goes dead), socket for lug nuts, battery box with inflator, coveralls, gloves, blanket, machete, first aid kit, zip ties, bailing wire. I carry minimal tools sledge hammer and pliers as I don't like to work alongside the road. I will change a tire or spend five minutes beating accident damage out before calling a tow truck.