This is worth almost what you pay for it, but I've found that with the right clothes and mannerisms no one looks twice at you. Or if they do, it's not the gun they're seeing.

Dark long sleeved button up shirt, dark slacks, black holster and basic black semi-auto. Stand tall and know that if you think about it, they'll notice it.
Or the most outlandish Western outfit you can find with an El Paso Saddlery belt and holster for your Vaquero.

Not that I've done this since that Chief in Stratton started handing out CCW's back before the State pulled its collective head out, but it worked way back when.