COGGINS TEST FOR THE HORSE.
Extra halters and leads
Extra show pants(if you fall, baddddddd thing!)
I second the first aid kit!
Mom or dad to bring you bagels coffee, your jacket, etc. couldn't live without my mom, mimi and my best friend/show groom!
I would always warm up in bell boots and my horse's boots just in case! There arn't farrier's at hunter show I don't think
A book to read durning break.
DUCK TAPE! It saved our truck from getting drenced in rain after some guy knock the window out parking our three horse slant plus tack plus living quarters trailer!
A sweatsuit to go over your clothes to keep them clean(our team has matching windsuits! It's so cool!)
A blanket(for you and your horse, you never know when you are going to get cold!)
Show sheen or vetrolin shine(i perfer the later)
Lunge line and whip
Extra gloves(I would warm up in my SSGs and trade them out for my leather ones right before I go into the ring)
Tide to go pens, just incase lunch gets on your breeches, show shirt, etc
Maybe a mid day meal for your horse but definitely a hay net! To munch on whilst standing by the trailer
And remeber- even if you are SO nervous and think you can't eat, EAT BREAKFAST! Even if it is just a small cup of fruit, EAT SOMETHING!
Oh and bobby pins!