Time to post those multi-gun competition carts and wagons!! I'm not sure that I have that photo but I'll set it up - mine's a converted twins baby carriage - room for all the comp items. Clamps for an AR on one side and shotgun on the other plus a small cooler and a folding camp chair...I've been to the range with nothing but a gun and a box of ammo - and I've been to the range with a 50 pound box of spare parts and tools. I try to match my kit to my purpose in going.
Fun, to me, doesn't involve a lot of planning or a lot of luggage.
Competition is more serious, and I try to be prepared for anything.