Here is an interesting variant on the ubiquitous battery pack many of us carry around for a quick recharge of our smartphone or tablet. The MyCharge HubPlus combines three functions in one nicely designed package.
It has a built-in lithium ion battery, fold out prongs so you can plug it directly in the wall and use it as a charger for your phone or tablet, and it has built in Lightning (Apple) and mini-USB cables. If you travel a lot, this could reduce the number of things you have to lug around.