Foodie websites and applications have already been launched to help you eat healthy and locally, and trace your food items back to their sources. The latest tech tool for foodies is StillTasty.com, a website devoted entirely to the shelf life of food. Left pizza out overnight? Concerned about how best to defrost a whole fish? And what of the age-old question: ketchup, to chill or not to chill? Get the answers to these and a plethora of other questions relating to how long foods last and when they should be trashed. Nifty, but it won’t save you from the endless stream of salmonella outbreaks.