I met a fellow once who was doing two senior places a day/365 days a year. When I asked him "how?" he showed me his van. He had a "handicap" platform attached in the back that he would wheel the cart onto, raise it, and then push the cart into the van. He kept his equipment all set up and ready to play on this cart. No setup, no breakdown. Just go in and do the job. Come out, roll it back into your vehicle, and in 30 seconds you're on the road...fresh as a daisy.
Lucky