Just a reminder that Ace Hardware stores in the Rocky Mountain region are offering a coupon for a free furnace filter through October 15th! You can print the coupon here and get a list of participating stores on that page, as well. The promotion is being offered to encourage people to change their filter since it’s likely quite dirty because of the smoke that was in the air over the summer. Be sure to check what kind of filter you need before you head to the store!
A few people had trouble with the coupon not printing correctly, but it sounds like a lot of people are having issues and most Ace stores are accepting them anyway.