A spring refresh calls for updating items you already have in your closet, makeup kit, and your home - or, better yet, your backyard. With warm weather nearly here, chances are you're planning to spend more time enjoying the sun on the patio. However, if your furniture looks a little rusty, dented or just old, now's your chance for a major upgrade, as Amazon is having a huge sale. Amazon's Big Spring Sale, which is taking place from now until Tuesday, March 31, is a haven for discounted patio furniture.