Personally, I keep my older lights around for this purpose, and have them on standby with batteries. Although I don't have many places for this.And, I disagree. I have several $1 rayovac lights which are simple to replace batteries, easy for anyone to use, not overpowered, not theft-worthy, and very importantly they run on weak AA batteries which unlike cr123a or 18650s have zero fire hazzard risk. So I think and collect aaa aa flashlights for this reason. Recently I got a couple 3c maglights on sale, again, easy to use for everyone, not too expensive ( $15) to risk loss or theft. And not super fire risk. I like these type of lights to remind me the extreme use of my better lights, and to have as solid back ups.My backup work lights inside of a few closets, tool chests, etc. Are usually the Coast pollysteel or similar lights.