Hello, I'm new to this forum and just have a question regarding photography storage. I'm primarily a mixed media artist but have recently engaged in a lot photography resulting in a handful of large prints (3'x4', etc). I keep them rolled up in container tubes but would like some storage that is appropriate for these large prints and my large illustrations as well. Something that will allow me to keep them flat. Can anyone recommend anything? The more affordable the better but I'm curious to see my options. Thanks.