Sale "Shopping Cart" should clears up on its own after payment
As of currently the "shopping cart" that is only available during a sale allows you to add games that are on sale into the cart, and from there you can buy all those games in the cart in one single payment withe the "Buy Now" option instead of buying each of them individually. But the issue is that the cart doesn't clear up on its own after you finish with the payment, and instead you can accidentally choose the "Buy Now" option again for the second time with all the games still in the cart. The only thing you can do is manually removing them after you are done with your purchase by hovering your mouse on the game in the cart and press the "X" icon for each one of them. I found this rather not user friendly as the other online game stores(e.g. Steam) clears up the cart after you are done with the payment.
