The most beautiful experience we can have is the mysterious. It is the fundamental emotion which stands at the cradle of true art and true science. -Einstein
Spray adhesive is the best way to attach two large surface areas together. I use it most when mounting paper and fabric to surfaces like cardboard, matte board and foam core.
Lighting designers use swatch books full of gel all the time, but when the new line of colors come out, they get a new book. The old books are useful in models.