I've searched around quite a bit, but I can't seem to find a good answer to this. For storing most of my OA I've been using 11x17 2 mil mylar bags from BCW. However, I have some pages (mostly on DC/Vertigo boards) that are a bit bigger by an inch or so in either dimension. Looking around, I have seen some 4 mil mylar sleeves meant for tabloid newspapers that would probably fit, but they don't have flaps for sealing. I've also seen some poly bags, but I was hoping to stick with mylar. Anyone know where I might be able to find 2 mil mylars with flaps in something like 12x18 or 13x19 sizes?
Mike