Every day it's a Springfield XDM 40 4.5" and spare 16rd magazine, a Gerber spring-assisted folding knife, two sharpies\two pens, nail clippers, ear plugs, headphones (I like to listen to music at work sometimes), cell phone (Droid X), wallet with five $2 bills in case my debit card doesn't work and $10 in silver coins, tin of tobacco and in my strong side pocket I carry one loose round. It's an odd habit I've had since being an LEO, and to explain why would be almost impossible, but regardless I do it. I don't carry a flashlight on me since I normally use my cell phone's light, but I do have two Maglites in the car - one is a 3D LED tucked between the driver seat and console, and the other seized up a couple years ago with the batteries still in it so I keep it as my "beater stick" tucked between the passenger seat and console.
Carry options are a Safariland 6360 that I had for a Glock 22 that oddly enough fits the XDM, and when I don't feel like going for the duty-look it's a Blackhawk Serpa CQC. I haven't really found a holster I like that has both retention and doesn't look like a duty rig, but the Serpa isn't too bad. I've also CC'ed a few times when I felt I really had to or was in a rush, but I don't have a holster yet so it's been Mexican carry - I do have a Cleveland Holster's Ugly Holster on order though, just need to wait for it.