For the brush box/ human "Kabootle"
Electric tape, show sheen, mane comb, hard and soft brush, 2 hoof picks, hoof black, makeup, hair spray, duck tape, mints, phone, cash, horse FAC, towels, saddle stick
For the show
Horse duh, saddle (make sure it is nice and clean), your bridle (use leather conditioner it makes the reigns a lot easier to use), saddle pad, bell boots, wraps, halter, lead, crop
Hay, trunks, mucking equipment, cd player (music relaxes horses), aspirin/tums, FAC, entertainment, chairs, show cloths, ribbon rack, and sodas
Seems like a ton and it is. I have found that all of these greatly help in the show, also never take free food from anyone...in the world of showing no food is ever free, if it is, something is wrong with it. I've seen people lace grilled cheese with laxatives and hand them out...