I have never bought a roll of paper towels in my life. This is perhaps my greatest claim to greenness. I only wish I had more opportunities to tout this little detail about my life, along with the fact that I’ve never eaten a Twinkie. But I digress.

So how do I wash windows and mirrors, you ask? With crumpled up newspaper, of course. A single sheet of newspaper can serve as my window-washer for a good six months before retiring to the recycling bin.

Would you like to try this green cleaning technique yourself? It’s easy. Just fill a spray bottle with a mixture of one part water, one part white vinegar. Spray a bit on the mirror or window, then wipe clean with the crumpled up newspaper. Voila! You’re done. And congratulations—you saved a paper towel.