When legal:
1911 CCO IWB
spare mag
Is that a Colt CCO Nathan? I don't see folks talk about them too often. Great CCW gun. Great gun period. They shoot nice too.
For me it's just my CCW, cell phone, and a little Gerber Curve on my keychain. (I also carry a Surefire G2 flashlight in the wintertime, carried in a coat or jacket pocket. In the summer I have the light in my phone if I need it.)
As far as the carry guns, it's either my Colt CCO or lately my new CZ PCR carried IWB with Kholster Full Moon holster. Spare mag is carried in a weak side knife pouch.
Depending on the situation where IWB may not be possible, I'll just pocket carry my S&W 642 in a Desantis pocket holster. One or two Bianchi speed strips carry reloads in a weak side pocket.
Pocket carry is more convenient, but I'm getting away from carrying the little revolver though. I don't shoot it as well as the CCO or PCR (nor reload near as quickly) and I'm not very comfortable with that.
In the cars, office, and of course home, I have extra water, food bars, first aid kit, fire extinguisher, bigger knives and flash light, among some other emergency gear.