It doesn't have to April for you to go easy on the planet. Decrease your carbon foot print by copping one of the new breed for electricity-free iPod and iPhone speakers. No, they're not going to be as loud as their current-carrying counterparts, but if you're out and about (say, camping) and don't have a power source, these'll come in real damn handy. Still unsure? Well, check out the 6 Best Electricity-Free iPod Speakers available now.