The 36 is a steel-frame gun, quite a bit heavier than the alloy-framed airweights I'm talking about. Naturally it sags more. You don't need any IWB with a little airweight like the 642. It goes in the pocket.
I'm medium height, medium build, and a holstered J-frame "prints" in my right pants pocket in much the same slight way as my keychain and my building ID card "print" in the other pocket. It is no problem.
Like I said, if you're in an extreme deep concealment situation where you can't be seen to have anything in your pocket, then OK, I grant your point. But how common is that kind of situation in everyday life? Most people -- most men, at a minimum -- walk around with some junk in their pockets. It's not suspicious.
For a woman wearing tight or skimpy clothing (and far be it from me to discourage this!) who wants an on-body carry method, I guess you might need to go with something as teeny as a P3AT. Thus, returning to the original post in this thread, it might not be a bad choice for the poster's wife. I'd go with a Rohrbaugh, funds permitting.
My comments were directed at CCWers in general, who usually have a lot more options. For a man wearing ordinary attire, be it slacks, jeans, or regular shorts, choosing a gun that small, in .380 caliber, that's hard to point accurately (I've fired one), with a fairly questionable reputation for reliability, seems pointless in 95% of CCW situations.