Now this is actually six different kinds of awesome right here, folks–now, you all probably remember the last time we brought up the idea of the breathalyzer, how it connected to your steering column and wouldn’t let you drive unless you blew a clean meter?

Well, this one isn’t quite so restrictive, but it IS a lot more portable.  It’s the Breathalyzer Keychain, and it is pretty much what it sounds like it is, a Breathalyzer on a key chain.  You know we love our key chains out here at Car Buyer’s Notebook, so this is definitely one we had to discuss.

You can actually TRACK your progression throughout the night, seeing what makes you drunker as you go, or trying to see how many pretzels it takes to drop your blood alcohol content.  I look for something like this to become the focus of dozens of bar contests as people bet on who’s drunker, or what somebody’s blood alcohol content is.

Best off, they’re not too pricey, either.  You can get one of these for as little as fifteen bucks.

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It’s not every day we think about key chains.  Sure, they’re a necessary part of every car trip, and they do a whole lot more than we think (who here hasn’t made the key chain claw in a bad neighborhood?) but there are key chains out there that do plenty more than just hold keys.

Today we’re talking about one such key chain, which Wholesale Keychains so kindly sent a model of for my consideration, the lockback knife.

It’s a lot smaller than you’d expect, and offers a short knife with a partially serrated edge.  You might well wonder why you’d ever want to carry a knife around on your keychain, especially with all the various laws around them, but I can assure you that if you ever get in an accident and caught in the seatbelt, you’d be glad to have one.

And frankly, I believe this little badass of a knife could cut through a seatbelt, too.  It tore through a Rent A Center circular like Lindsay Lohan through a bag of coke.  Best of all, you can get one of these yourselves for the low, low price of $4.99, and if you order from them, you can get ten percent off if you use the promotional code carbuyer.

So if you live in fear of being pinned upside down in a car, worry no longer.

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