There is nothing more frustrating than being stuck with a dead battery on your smartphone or tablet when you’re nowhere near a power outlet. What if you could bring your electricity with you wherever you go? The new WAACS rollable solar charger pulls out of a handy little holder, as simple as a roll of paper towels. The case is made of lightweight, recyclable aluminum and the small flexible solar cells make sure that traveling without electricity is no longer an issue. The retractable system works like blinds over windows, allowing the user to pull the mini solar panel out whenever a charge is needed and simply roll it back up and slip it into a backpack pocket or purse. You can plug in a mini or regular size USB to this perfect source of renewable energy and instead of fighting for a plug at the airport, you’ll only have to fight for a spot by the terminal window.