Extra Large Rubber Bands

CoolTools has the information. You know you want a bag. An excerpt:

I love them for binding together papers and books (I teach so I always have a few in my desk.) I have used them to hold wood in place for gluing. I use them along with barge glue and duct tape to splice materials together in the garden. And I use them for sling shots., too. In fact they are always in mind and on hand for any kind of kludge. I usually buy a couple of pounds of them at a time for less than ten bucks.