Right front: Blackberry, earplugs or headphones, mic and 1/4"-mini adaptor (depending on the situation)
Left front: iPod Touch (for personal use as well as audio diagnostics - I'm an audio-visual tech)
Right back: Wallet
Left back: Nothing
I also occasionally carry a Swiss Army messenger bag with my laptop, book(s) and/or my Bible in it, and when I bike into work, I have a bunch of extra clothes stuff in my backpack.
I carry my keys either on a carabiner on my belt loop or in one of the pockets of whichever bag I'm carrying.
Left front: iPod Touch (for personal use as well as audio diagnostics - I'm an audio-visual tech)
Right back: Wallet
Left back: Nothing
I also occasionally carry a Swiss Army messenger bag with my laptop, book(s) and/or my Bible in it, and when I bike into work, I have a bunch of extra clothes stuff in my backpack.
I carry my keys either on a carabiner on my belt loop or in one of the pockets of whichever bag I'm carrying.