Each day, you ride your bike to work with good intentions. You want to be green, you want to save money by not paying for the subway or a cab, and you want to get some exercise. This is all great. Until, that is, you get sucked into happy hour drinks with your co-workers. "I can only have one drink," you tell them. "I have my bike." But, of course, one drink turns into 100 drinks and you're faced with a decision. Ride your bike drunk, or leave it there for the night. Obviously the second option is really the only option, but when we're drunk, we make dumb decisions. How many times have you had to convince that one friend of yours that, no, he's not sober enough to drive a car.
Enter the Alcoho-Lock ($240), a bike lock that employs breathalyzer technology. You blow into the lock, and if it detects alcohol, it won't unlock. It'll also send a message to a designated contact that you're going to need a ride home. Basically, this thing saves you from yourself. If you're the type of person that needs regular protection from your own stupid decisions, think about purchasing it.