Spring Cleaning time! Try out Windex Original (26 oz or 32 oz) and if you're not satisfied, you can request your money back. This offer is up to $3.99 and you do need to list your reason for dissatisfaction, along with the surface you used the product on when you tried it. You need to have your request postmarked by 7/30/2013. Be sure to keep your receipt as you need to send it in.
Keep the bottle as you'll need to note the UPC number on the downloadable refund request form.