Once stayed in a hotel that lost power and the room was pitch dark. The usb light, running on the laptop battery, made it a lot easier for me to orient myself and let me gather my stuff without running down my edc light.
What's the point of an EDC light if you don't use it when you need it?
I must not have been clear enough - I did use my EDC light when I needed it.
I also had a nice low powered light attached to my laptop that let me more readily orient myself in a strange place and also let me take care of a lot of tasks that morning without needing my EDC light. More importantly, for me, I woke up in a strange room and had enough light to quickly find my EDC stuff. I have travelled enough to know I wake up a bit disoriented in dark hotel rooms.
This happened several years ago and my EDC light at the time was single AAA incandescent so an extra source of light came in pretty handy.
-Eric