Thinning the files

I've got some books that won't fit on my shelf. I figure that if I were to reduce and move some of the materials in other areas that I will eventually find space on the shelf. Today I pulled out my notes from Film 400. I've taught it about 7 or 8 times and rarely have I thrown anything away from the files. I reduced this in half, making about 4 more inches in my drawer. Tomorrow I'll do some more. I have a 4 inch stack of proposals which I should scan to files and recycle, but I'd like them in individual pdfs rather than one massive one, so this would require a minute long cycle for each of the 150 proposals. Maybe I can get a student assistant to do this...?