What other horse supplies do i need?

Im going to the midwest horse fair. And im not sure what i all need left. Also i am into english riding. Here is what i have so far. Hard and soft brush, metal and rubber curry, tack box, hoof pick, crop, whip, lounge line, breeches, chaps, helmet, helmet cover, lead rope, comb, sweat scr, gloves, boots. But, i do NOT have a horse. So i cant have any liquids or anything that will spoil. Can you help?