I pocket carry more than I carry in any other way. I use a Desantis Nemesis pocket holster for my S&W 642 or my Ruger LC9s. The only downsides to pocket carry, in my opinion, are that while sitting (such as when driving a car), access to the gun would be difficult at best, and two, I have fewer places to carry the rest of my daily gear ( wallet, keys, phone, knife). I wear jeans about 95% of the time, and the Desantis stays in place in all but one pair of jeans. That one pair has overly large front pockets and the holster does sometimes turn a bit which would slow down drawing the gun if needed.
I agree that the LCP is an ultra concealable pistol. I had one, but hated to shoot it because of how snappy it was, and my accuracy with it was terrible, even at very close distances.