The madness has begun once again at Woot!: It’s a Woot off! In case you’re not familiar with that, a Woot Off is that frenzied time when Woot, that kooky deal-a-day site, sells a succession of occasionally useful items at unusually low prices in rapid succession, until everything is sold out. Don’t just keep refreshing, use your Woot-Off Checker. We hear this is a good one.