S&W 640 .38spl or a Taurus TCP 380. I can carry either one in my pocket with a pocket holster.
When I carry the 640 I support my jeans with Perry suspenders.
Ruger LCP with a Kel Tec pocket / belt clip is my "grocery gun". ALWAYS keep an extra mag in my pocket. For "questionable" areas I bring a G26 with 2 extra G19 mags. On the rare occasions I have to travel to "Injun Country" I keep a pistol grip Mossberg 500 in my vehicle. NOT PARANOID, JUST WELL PREPARED!