Be careful: Never point the pressure washer at yourself or others, and make sure pets are safe inside before you get started. Then ask someone to film the process from a safe distance, because you will definitely want to document this impressive before-and-after. Bonus points: mulch! OK, mulching isn’t technically cleaning, but adding a fresh layer of mulch to the garden beds never fails to make a backyard or patio appear instantly more put-together. Plus, some garden pros swear by mulching before they plant, so they don’t have to carefully avoid blooming flowers later.