Marry the house to its landscape. The architects and designers we talked with are almost unanimous — landscaping is what makes the biggest difference in exterior appeal. Whether you're aiming for a quick freshening up or a complete front yard overhaul, take the time to come up with a basic plan for your landscape. Aim for a good balance of lawn and plants. "Avoid just putting sod down and calling it a day," says Kyle Sheffield of LDA Architecture & Interiors. "Create a transition from the house to the grade by using species that descend in height from the house. This will give the appearance that the house is married to the landscape rather than plopped on a lot."Look for the sight lines in your yard. Get a visual from the curb or drive by the space you want to update. "Identify the 'where,'" says Kim Thibodeau of Paradise Restored Landscaping. "The viewpoint that will pull you and your guest outside." If you don't have time or a budget to plant anything new, do a big cleanup. Detail trees and shrubs, and edge flower beds. Add topsoil and mulch to even out the grade, and weed and get rid of dead plantings.