Usually I do the big manly man thing and grab as many bags at once from the car as I can (barely) handle. Rolling bag with duffel stacked on top, camera bag over shoulder, food/grocery bags in one hand, pulling bags with other...I'll go straight to the elevator and to the room, drop those, then head back to the car for round two with additional bag and cooler. I need to sit with the AC blasting and rest for 20 minutes before unpacking as I'm worn out from cramming everything into two trips instead of spreading it out to 3 or 4 - for no reason other than just being a manly man and being stubborn. Same thing in reverse when checking out - though the luggage cart made it so much nicer and easier this last time!
For my September trip, I'll be staying at Boardwalk, so I'll let Bell Services handle all the luggage in and out of the car. But in December I'll be back in Saratoga and boy would I love to find a luggage cart lurking by the elevators when I check in!