(I climb C1-C3, this is my second year.)
Normal clean rack:
Cams: DMM 3/4 through 4
Hybrid Aliens: 2 sets
WC Zero: #3
Camp Ballnutz: 1-5
Nuts: DMM 1-11
Brass Nuts: Trango Brassies 1-8
Micro Nuts: HB Offsets 0-6
Tricams: 1/2-2
Cam Hooks: Normal and wide (2 ea)
Hooks: BD Talon, BD Cliffhanger, Pika (1 1/2 - 3 inches)
Pieces I use the least:
Larger Ballnutz (but I have partners who loves them)
#3 Zero Cam (placed once)
#0 HB (never placed, this thing is tiny)
Things that sit in the haul bag:
Nuts: BD Microstoppers, DMM Peanuts
Hexes: WC 3-8
Cam Hooks: Fragile Flake, Micro
BD Cliffhanger (redundant with smallest Pika)
Pieces I use seldom but glad to carry:
Large Pika hooks - turn a spooky move into a solid placement.
I have a bunch of pitons, peckers, copperheads, and a bolt kit but haven't needed them.