Sure you could simply give your milk a quick sniff, but the cool new Milkmaid - Smart Milk Jug is a state-of-the-art way to monitor your milk. This innovative quart-sized glass milk jug uses pH sensors to detect how long the milk has left until it spoils or if it already has, a smart base with a weight sensor that tells how many cups are left, and a temperature sensor that alerts you when the milk has been left out of the fridge for too long. It even has a free iPhone app that lets you access this data remotely, so you'll know when to pick up more at the store. A cool idea that's still in development at Quirky.com, so if you think this handy invention needs to exist, click on over and show your support.
Milkmaid - Smart Milk Jug Monitors Your Milk