I hate changing the furnace filter every three months — they are expensive, and they just seem to create so much waste. So when I was visiting my mom last week, I noticed she had a nifty reusable filter for her furnace. She said she’s had it for a year and LOVES it. So I bought one, a WEB Eco Filter Plus, as soon as I got back home. I really like how it can be adjusted to fit any size furnace, as we’ve just bent a too-large filter to fit before. It was really easy to customize, too, taking just over five minutes to cut and snap all the pieces together. The instructions suggest you clean it monthly for best results, and I plan on doing that, by just running it through the tub. For the price of two disposable filters, I’ve got a perfect-sized lifetime model. Score! — Megan B.