In my opinion, flashlights are possibly the only device that should be stored with battereies. When you need a light is not a good time to be trying to load battereis. If there is a problem, you won't be able to trouble shoot it.
Some tricks I have used over the years:
- Tape around bezels that turn on the light keeps the light from coming on accidentally.
- If the swich is flush, a piece of thick paper taped over it will keep it from turning on. If you fold over a pull tab onone side, it can be retracted and replaced. Incedentally, you can stuff a pice of paper under the valve on a cigarette lighter and wrap it with tape to prevent accidentally draining it. This is a must for a first aid kit.
- Rubber bands can be wrapped around some lights to keep switches from turning. This is ideal for rarely used lights in hot cars.
- The pull tab idea mentioned earlier works well for some devices.
- Some devices need a ridge around the switch to prevent accidental sliding and pushing. I take solid core copper wire (like the telephone line wire used within the walls of a house) and make a wall around the switch, which is secured with superglue. It's a bit tacky, but this solution works very well.