This is going to be fairly general as my stuff changes frequently:
Right front: wallet, SAK, Fisher Space Pen, 3-4" folder clipped on the side
Right rear: usually nothing
Left rear: handkerchief, spare magazine (off duty)
Left front: flashlight
IWB 4 o'clock - Glock 26 or Kahr CM9
IWB 1 o'clock...