re: Flashlight suggestions?

I have Streamlight, Surefire and Olight, plus a few random cheap chinesiums of unknown brand. My last two purchases were Olight but if you don't like proprietary charging I'd go with Fenix or Streamlight.

Olight does have a couple of AA or AAA models that just use regular batteries, but once you get past that they use proprietary stuff. It's not expensive but it's not as convenient as USB charging.