The first gadget of 2015 was actually from Dick's "What the heck is it" game. It's called the Store-A-Cell battery caddy. It solves the problem of how to conveniently store batteries in a compact and easy to find holder. Originally designed for pilots, the Battery Caddy is also great for photography, camping, travel or home use. The price depends on the Storacell Battery Caddy you need, but they start at about $5.50. They are available for AA, AAA, and 9V batteries, and there are even versions that can take all three kinds of batteries in one caddy. And you can choose colors.