As of right now I've been using a big blue walmart tarp for weather protection camping on my boyfriends property. It works great, but it's not practical for carrying around. I usually leave it at the spot so it'll be there and ready next time as we camp in pretty much the same spot each time we go. That's all fine and dandy until we decide to switch spots or go to a group hang, and then either I have to lug around the heavy bulky thing or I'm up the creek if it rains. I've been thinking a lot lately about making my own tarp, but I'm not sure about materials. What's the best most affordable, and preferably lightweight material to use? Where can I find the proper material? Then, there's the cost. Is it cheaper to go DIY or just buy one?