#7: Flowering air purifiers.
Nothing is better at beating the trifecta of winter blues—dirty air, and lackluster décor—than a flowering houseplant. Florists' mum and Gerbera daisies (pictured) are the best at removing formaldehyde, with tulips not far behind. Of course, nothing worth having comes easy. Flowering plants require more careful watering and feeding, and most prefer cool temperatures (below 65 degrees). Also, unless you're a really good indoor gardener, you have to toss the plants after the flowers die. If you're really dedicated, you can try rooting a new azalea plant this spring in a movable container that you can bring indoors in the fall. Azaleas can be bred to flower all winter, they are great at removing formaldehyde, and they don't have to be tossed out when their flowers fall off.
Keep Reading: 11 Foods That Make You Smarter