Possibilities: pil'o cardboard

Possibilities for utilizing a "big" (3-4 cubic feet) pile of cardboard welcome. Includes died and corrugated and plastic materials, thus inedible varieties are welcome.

We like to pile it up, and then go chase it down the driveway when the wind picks up, then pile it up again.

Just kidding. I don't love chasing cardboard. But I do love having a pile of it. My plans for the cardboard pile include: expanding gardens for next year, covering the lawn as I begin to build my small forest, and making toad habitat.

Last year, we weeded out a terribly overgrown side of the house to build a shed. Around it, we lay cardboard for many months, and this spring, we put in a nice layer of mulch for a path around and behind the shed.

Another favourite use of cardboard for me is building (extremely) rough prototypes of furniture I invent, like a desk or shelves. I like to be able to see how the piece will work in 3D before I take the time to build it.

EDITED TO ADD: oops, I've just seen this is posted in fungi. I guess my suggestions are not of the type you're looking for! Sorry. Bonus suggestions, I guess. :)