I am amazed at how quickly you can come to rely on something that you didn't think would be useful. Since getting a better headlight, I put some velcro on my old light and slap it on my helmet at night. I'd tried it before with under-powered helmet lights and wasn't impressed, but last night, when the battery got low and it went into power saving blink mode I almost ran over two rabbits and one doe. I've gotten into the habit of spotting them further back with the helmet light. Back to carrying spare batteries after all ...