When I finish typing and running off the Sunday Bulletins (with several inserts) I need to stack them and use a strong rubber band to hold them together until they are distributed on Sunday morning.
I've used these rubber bands for years (not too thin and not too wide) and find that they are very versatile. They are great for securing my Daily Minder or for keeping a group of 4 X 6 notebooks in one neat package. I can slip pencils or pens beneath the rubber band to keep them handy.