I'm pretty slender, so I'm limited to what I can realistically conceal. My work dress generally consists of polo or dress type shirts and khaki pants.
Been carrying an LCP since they first came out. The sights suck on it but at the ranges I would expect to have to use it, that's almost irrelevant. During controlled range firing, I have no problems hitting COM or head shots at 10 yards.
I mounted a Crimson Trace Laserguard as soon as it was available and really like that setup. The drawback is that it's very hard or sometimes impossible to see it in daylight conditions.
I carry it in my right rear pocket where most people carry a wallet using an Uncle Mikes sticky pocket holster. I practice drawing and dry firing regularly.
I keep it loaded with Hornady Critical Defense.
The .380 round is not as powerful as I would like but I always have it, regardless of what I'm wearing. Although I've never had to use it I'm confident that the total combination will work out for me in any realistic scenario I can come up with where using it is my only option.
I wish I had gotten it in the stainless version for corrosion resistance. It's still 100% reliable for me and goes bang every time, but after all these years it looks a little rough.