#14: Do you show all additional charges near price?
If you have any additional product-specific (i.e. additional shipping charges because of the produt size) or country-specific (i.e. VAT) charges, it can become really unexpected if you show it only on Checkout process. It will be really frustrating for shoppers.
That's why you have to show any additional charges in advance, so it will not be a bad suprise for them later.

Good example from Worldmarket website:
Here is how WorldMarket shows additional shipping fee "Oversized Shipping Fee - $75" for oversized product (big dining table, so they set right expectation about the total price already on product page
Made on