I do a similar thing with the kids out trick-or-treating. (and other times) I do need a flashlight in my pack, but haven't spent the money yet. I carry a small streamlight in my pocket all day. I guess I'm looking for more hands free, like the slap bands or whatever they are. LED strap types light I can turn on when I start walking and off when I'm home.
See how shopping goes this weekend for various devices.