Okay, so I've been searching on craigslist and freeCycle and am not finding windows. (at least, not cheap ones- I've seen plenty of new ones listed) I'm at the beginning stages of building, so I have some time, but I am worried, because I will be framing soon! I know what size I would ideally like.. has anyone built their own windows? Would you just build a frame and then throw in plexi or glass? I'm still hoping I come across something, but not holding out much hope and if I build them myself, they will be exactly the size and shape I want them. So... how do you build a window and what did you use???? I'm planning on putting it on hinges and propping it open.