Rainy spring days are a great time to take care of those little household cleaning chores you might have forgotten to do for a while, says BrightNest. You can clean the oven and replace burnt-out light bulbs. Clean the coffeemaker using a 1:2 vinegar-and-water solution. Wash that shower curtain, or clean your garbage disposal using vinegar-and-lemon ice cubes. And finally, change your furnace’s air filter; it’s recommended every three months, and most saw heavy use through the winter. With allergy season is almost here, you’ll breathe easier.