Unfortunately I won't be of much help here as my school's program wanted slides (10 to 15) rather than the actual artwork. However, I wanted to point out that for things like this NEATNESS (and organization) COUNTS!! In some cases it counts for a whole lot. I've worked at a few art museums and when we recieve portfolios from artists who want shows if the portfolio is at all difficult to navigate there's a good chance the artist will be skipped over completely (unless the artwork is unbelievably stellar). Anyway, hope that helped a bit!