Good design drives sales. This philosophy defines eCommerce more than any other, with the exception of the actual quality of the items sold. As obvious as it sounds, it is not as widely implemented as it should be. The U.S. Census Bureau reports that the maturing eCommerce market, which has more than doubled in size between 2005 and 2014 in the United States alone, became a highly competitive market sector, where every mistake costs you revenue. The worst part? Design errors are a problem that can be sidestepped altogether without a lot of effort on your part. All you need is a bit of research into what are the common mistakes – and how to avoid them.