I heard from a few different people that my post last year reminding everyone to change their furnace filter helped them out and motivated them to head down to their basement to check the age of their filter. Being deep in the heart of winter - with everyone's furnaces running all the time - I figured it was time to mention it again. If you haven't done it in a while....
GO CHANGE YOUR FURNACE FILTER!
In fact...if you are like me, and prone to forget when you put one in and when it is time to take one out, our good friends at Menards have the answer: An automated nag to remind you to change the filter.
Of course, you could do all of that yourself with your calendar and what not. But...then, what's technology for, if not for nags from Menards?!?