Headlights...very useful

Bow slings...very useful. I used to hunt with recurves/long bows for years. Now I hunt with a compound (old/new). If I have a 300yd or more walk in or out of the woods in the dark I use the sling. I think they are great (we all use slings on our rifles...don't we)? I don't use them in the day light because they take an extra several seconds to remove if you see deer while walking.

A gadget I would not be caught dead with? I don't know! I don't own anything like that.