While excitedly trying to put a poster in a new frame yesterday, I broke the picture glass 
And it's a biggie - 24X36. Has anyone ever bought replacement glass like this before? How much should I expect to pay? I read on the net that home improvement stores can cut glass for me so I think I'm going to start there unless anyone has a better suggestion... Dawgoneit, serves me right for forcing the glass back into the frame (I thought I was being careful).