I've been carrying this little AAA flashlight every day since 2014. It's still running strong and is very bright on high, but nice and dim on the low setting.
It's about the size of a tube of Chapstick and rides/dangles next to a Gerber Dime on a homemade pocket clip.
I love the way it has aged.
MTs: Gerber Dime, Gerber Suspension NXT, PLeatherman Wave, Misc China Cheapos
SAKs: Vic Climber, Vic Classic SD, Vic Classic (non-SD), Engraved 3-blade SAK (given to me as a gift)