Turns out it's oddly satisfying to make a bow from a single square of scrap paper. No glue or tape needed; just a scissors to make a couple of cuts.
These are folded from graph paper I stole from Alex's stash, a piece of origami paper, and a chopped-up Martha Stewart magazine. I trimmed the paper into 6" squares and followed the excellent instructions posted at Let's Create.
These will be handy at Christmas when we need to mail packages or stack boxes in the car for a road trip, since the bows can be squashed completely flat. Course by then, I won't remember how to make them anymore, or even that I posted this.