7. USB Cooler
While not the most efficient fridge, it is hard to beat the fact that this gadget is portable and plugs in to a USB. This means that wherever you are, as long as you have a smartphone adapter or your laptop, you’ll always be able to chill as can of your favorite beverage. Or, if there’s just not enough space in the work fridge for your drinks, hide this under your desk and keep your coworkers wondering where all of those chilled beverages are coming from.