What do you do with empty boxes?

cubfan78 · 2017-01-01T18:49:47.000Z

Just like it says. I have a bunch of empty boxes from the sets I have built over the last month. They are now starting to pile out and getting a little out of control. I have no plans to resell any of the built sets and not sure I want to store them for the next 20 plus years. Not to mention the boxes from future builds. Is there any reason I should just not through them in the recycle bin?