Staples.com has a great deal right now if you are a small business owner. One of the most expensive things I have had made for my business was my banner and I use it ALL THE TIME.
Right now on Staples.com you can get custom banners for as low as $9.99. I think I paid around $70 for mine when it was all finished so this might be a chance to grab a great deal.
Plus you can choose free in store pickup if available to avoid shipping charges!