I read somewhere that shopping cart has to be displayed twice on the page so it would be easy for the user to find it. Also I read that shopping cart should always be visible.
So what is the best practice to place shopping cart on the page?
For example this website http://kapitele.com.ua/ has a bottom bar that is floating. Thus, shopping cart is always visible. But http://www.bestbuy.com has only one shopping cart in the header. Would you say that the first website is more usable in terms of finding a cart and continuing to the order?