My daughter has one of those Goal Zero setups, too. she often goes out exploring in the woods on the arsenal, and uses the powerpac to keep her gadgets running. She also takes it along when she is in the car and needs an extra power pack for something.
As for the little headlamps, those are awesome ! I have only ever had a cheapie one from Harbor Frieght Tools; but I used to wear it every noght when i came home from work in the dark and had to be outside feeding the horses and doing outside evening chores. It left my hands free and was always ppoinging where I wanted light to be shining. I loved it, and always kept the batteries charged and ready to go in case I had to go outside for a nighttime emergency.
