There is some debate in our household regarding when is the optimum time to buy a pumpkin for halloween. I kind of feel like you should buy a pumpkin only a week or maybe two before halloween and not carve it until a week or less beforehand. Some of my houses in my neighborhood have had pumpkins sitting outside already for two weeks. I know that in the past I've had pumpkins ruined because of being left outside and being exposed to frost and other elements. I want to make sure I have jack o'lanterns for trick or treating this year.