Personally, I usually either carry a 1911, a Glock, or a S&W 36.
I carry either the 45 ACP Combat Commander I built or my 3 inch 44 Special revolver most of the time,but in real hot weather when I am wearing shorts and a light t-shirt I carry the Kel-Tec. As you pointed out,it has a clip built right on the side of the pistol that can be used to clip it to the inside of your waistband,and nobody will ever notice it under a t-shirt.
" I carry either the 45 ACP Combat Commander I built or "
Those are sweet. I have a Colt Officers model that was given to me as a retirement gift a number of years ago. Now that I am older, I need to dig it out of the safe and start carrying it, instead of one of my full size government models.
The Officers model is somewhat smaller, and lighter, although it is only 6 rounds. But it will accept 7 & 8 round mags. If 6 rounds is not enough, I always carry two spare Chip McCormick 8 rounders. If that still isn't enough, well, I guess I am really in trouble, LOL! Time to break out some heavy stuff, LOL!