I bring my box with fuel, starter, 12V battery, rubber bands, buddy box cable when I bring the kids along, AND

a large tool box with all the tools, supplies, extra parts, epoxy, CA glue, and "stuff", I can put in there. You never know what you will need.

Also a roll of paper towels, cleaning solution (windex with a small amount of soap), transmitters, planes of course, wings (never forget them) lots of drinking fluids (Gatorade or similar); sun glasses, hat sunscreen lotion, insect repellent. Make sure you have a pair of long pants and long sleeves available in case you have to dive in the woods to find your plane carcass, particularly if you are allergic to poison ivy or have something against snakes. Take a plastic bag in your pocket in case you have to rescue small pieces of plane, servos, engine, battery, etc from the wrekage site

Luis