Challenging conventions
“But I would like to call it shopping bag” - forget that - bags no good. When it comes to e-commerce design, web designer to tell people what projects the Convention. Accordance with the Convention. A tool to consumers, expectations, or you will lose. Shopping cart is a cart - label them. Tag should be like a tag. Link should look like links. Button, the button should look like. This stuff is easy to people, they are called the Convention a contributing factor.
5. Bad Typography
Fight the request to make any important phrases in your design bigger, bolder, or more red - just to a point. It does not work ...