As a writer for a sustainable design website I get to look at cool solar powered bags all the time, but because I’m a writer, I’m also too poor to afford most of them (cruel irony!). But then I thought hey, what is a solar bag really than a nice purse, backpack or tote with a solar panel attached? I could probably whip one up using a bag I already have myself, no? So that’s exactly what I did, and so can you. Read on for the DIY instructions.