Princeton Tec Push
$50 / princetontec.com
At 100 lumens, Princeton Tec's Push light ain't exactly vampire-incinerating, portable-supernova bright. It is, however, a decent commuter light. Plus, the Push runs on AAA batteries and stows neatly in your hydration pack, so it's also a good back-up light for those moments when your ultra-bright and expensive lighting system fizzles out.