The fourth thing that you should consider is choosing best online store builder to over come the features solution like there are lots of shopping carts as eCommerce Best, Pinnacle Cart, and etc Try to have a research on each of them for start-up and then chose the one with most SEO features because with no SEO you will not get any sales. Or for a full Guide Read Starting An Online Store Business See picture bellow for list of shopping carts.
The Yummy Secret: Here is what makes you a successful store owner and avoid money loss: If you start an online shop you may face lots of problems selling online because in the first days you will not get enough traffic, But some shopping carts like Pinnacle Cart have a feature that it will automatically syndicate your products to major eCommerce sites like eBay, ShopZilla, Amazon and etc that it will give you enough sales in order to become a successful store owner and increase ROI. - See more at: http://www.msoe.edu/blogs/ecommerce/2013/10/23/ecommerce-bestpractice#sthash.AI1q2Mb3.dpuf