Yep, this has got to be about the most boring topic ever, but maybe someone out there will find it ever so slightly useful. I recently packed up my classroom and said my goodbyes. I like to make sure everything is nicely tucked away, safe from dust and from wandering off. When I cover my shelves, I first recycle any bulletin board paper that I take off my walls.
Instead of using fresh paper when I run out of what's on my walls, I use large plastic garbage bags from the custodian's closet.
It only took two bags to cover four shelves, and the bags are actually easier to manipulate than butcher paper. I figure it's not a bad way to make sure everything is in tip top shape when I return in August. Boring and hopefully useful too.