If you have to ride your bike at night, there's no such thing as wearing too much reflective material—after all, you want to make yourself as visible as possible to those with whom you share the road. But a flashing light can ensure a driver spots you well before the headlights of their car do, and with a pair of these glowing LightSpurs clamped to the back of your shoes, you'll stand out like a sore—but safe—thumb.
Powered by a small CR2032 watch battery, the waterproof LightSpurs will run for about 100 hours in flashing mode before you need to swap in a new one. They can also be set to steadily glow, though that will reduce your battery life. They sell for about $20 each, but in theory, you only need to wear one on the side of your bike that's most visible to traffic. Unless you're going for the whole wild west effect—in that case, a pair of spurs is definitely the way to go. [Nathan Sports via Gizmag]