Wondering if anyone has any creative, cheap methods or attachments for increasing the volume of the Metcalf. Things like if/how you attached a dry bag to it, or extra attachments that aren't sold by MR as I have already looked into those. Planning a 10+ day hunt and the Metcalf just isn't big enough. Contemplating upsizing to the Marshall but I would like to avoid doing that if I don't need to.