Saturday morning: Clean the air. Open up those windows and let the fresh air in. This simple step can make a big difference in indoor air quality, which is usually worse than outside, even in cities. Try to crack a few windows for at least 15 minutes each day to keep your home's air clean.Next, grab your coat and your coffee because I am sending you on a little errand. Visit a local nursery (or even your grocery store) and treat yourself to a flowering plant. This small act will undoubtedly lift your spirits, and it will help detox the air to boot.