Dear All. Realizing that my 400,000 or so 35 mm transparencies are now essentially worthless (and are taking up a lot of room) I am trying to decide what is the easiest and most efficacious way of disposing of them. All of them are stored in 20 images per sheet plastic sheets and every one of them is labeled with identification and my name. The most obvious thing to do is just to slowly throw them out in the trash, but ideally I would like to take the slides out of the sheets, which I would then hope to recycle (though given their age none of these sheets has the triangle recycling symbol o