When it comes to making a good first impression, nothing beats well-manicured landscaping. Even if you're not a master gardener, you can still boost your yard's appeal with one secret weapon: mulch. Pick up a few bags of mulch from the garden center, and heap it up in your planting beds and around small trees and shrubs. The fresh wood chips will add a touch of polish to the yard and may even let you water a little less often. Bonus tip: Your local municipality may offer mulch for free—many cities do. Call 311 to find out.