I'm not sure this invention solves a COMMON problem, but it certainly solves a unique one.
A product called the Pizza Pocket Hoodie just went up on Kickstarter. It's a hooded sweatshirt with a big, insulated, triangular pocket on the front . . . that's perfect for storing a warm slice of pizza. You know, so you can eat it on the go.
If you're interested, you can pledge $55 to pre-order one. If they hit their goal of $5,000, the hoodies are set to ship in June.