Andy's suggestions for essential target competition kit
Shooting stuff: (You might consider having a spare for these)
Bow, String, Bracing height gauge, Stabilisers, Plunger button, Sight, Arrows, Bracer, Tab, Quiver, Tassle, Binoculars / telescope +/- tripod, Arrow puller, Score pad, Pen, Bow tool kit (screwdriver, allan keys, spares for string, fletchings, nocks etc)
Line stuff:
Tent / shelter, Collapsible seat / stool, Warmer clothing, Waterproof clothing, Lunch & nibbles, Drink (hot, cold or both), Small change for coffee etc from tea tent or for raffle, Leave credit cards incase on site Quicks proves too much of a temptation, Hat, Sunblock, Sun glasses (can you shoot in them?), Towel