Out of black ink in your printer? No problem.

Turn all the text in (a copy of) your document light orange, and print. Take the paper and put it back into the printer in the correct orientation, then turn all the text deep blue, and print again. The result is a very dark green almost-black.

If the convergence on your printer isn’t perfect (which my $99 Photosmart surely isn’t), you can get extra trip factor out of this experience by looking at your final product through a pair of blue/orange 3D glasses - the words on the page will appear to have just a little bit of depth/texture to them.

The best part? I came up with this just now, on my first uncaffeinated night of the week. Love life.