I have 3 ways to carry, though I dont get to use one of them anymore.
With my P7 I use an IWB at 8 o'clock and a Galco spare mag carrier on my 4. It works well since the weapon is so thin and I can carry it without much more then a T-shirt and get away with it fine. Since I usually wear pants with a heavy belt and a button up shirt thrown over it, I have no worries unless its really windy.
I can carry my USP, but I really dont anymore. I used to keep it in a Galco leather double retention OWB right at my 9 o'clock that was canted 25 degrees forward and keep the shield right in front of it. Usually I didnt do this unless it was winter since I really dont like open carry, it makes you an easily identified "Lets kill him first" target. It was more that if for some reason I flashed my gun, people saw the badge too so it wasnt an "Oh my god call the police" moment. Since I dont have the shield or anything anymore, unless Im wearing my leather coat or something I dont want to risk causing a rucus. People are still kinda getting used to CCW in Ohio, even though its been over a year. I used to have a shoulder rig for it, but I never used it and sold it. Too bad too, the girlfriend thought it looked sexy.
Third, and probably my most favorite way to carry. If Im going into the woods muchroom hunting (appalacian pasttime) or such I take the Model 19. And I wear it in a drop leg cowboy style leather holster. Puts the but of the gun right where my hand hangs. It doesnt have bullets around the whole thing or anything, but it do Keep a pair of speedloaders on it, just in case. Now a lot in Ohio or anywhere else I go that a .357 wont deal with pretty well. Still, I wouldnt mind getting a .44 and keeping the family heirloom at home.