The Oct. 12 Deal of the Day is a sleek case for a big phone. The Mobi Products Crystal Case for Samsung Infuse 4G is a form-fitting plastic shell that provides protection but still shows off the sleek lines of your Infuse 4G. It's basic protection for your phone, and it's got cutouts for all the ports and buttons. And you can get it today only for just $4.95 -- that's 75 percent off! Get yours while supplies last.