USB cup warmers are dime a dozen these days, as most folks need a nice, hot cup of coffee in the morning to wake them up. How about those after lunch moments when you want a chilled drink instead, particularly when it is sweltering outside? Enter the USB beverage chiller bag that will help keep your cold tin of Coke nice and cool via a small insulated back, although we do wonder just how effective this is. According to the product description, it decreases the temperature “to -10 degrees after 5 mins” – sounds improbable, no? Ah well, you just have to fork out $9 to find out.