(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.