Breeze Breathometer

With breathalyzers now wholly affordable, there’s really no excuse to not be in the know and risk a DUI. Breathometer’s Breeze is sized for a keychain and lets you check your blood alcohol content in seconds — no warm up time required — using nothing but your smartphone. Powered for over a year by a single coin cell battery, just pair it to your Android or iOS phone via Bluetooth, launch the accompanying app, and blow. And on top of quickly deciphering your blood alcohol levels, it can also call you an Uber cab with the push of a button and boasts Back to Zero, a function that estimates at what time you’ll be totally sober.

Hit up Amazon for more info – $90