I spent two hours trying to buy stuff from a site that uses Paypal’s shopping-cart system. Why? Because it kept resetting the cart. This seems to happen at random intervals, but is guaranteed to happen if you’re actually logged into your Paypal account and that session times out while you’re loading up the cart.

It was so bad that I ended up pre-staging the desired items in multiple tabs, so that I could rapidly add them all to the cart and hit the checkout button before the session expired. As it is, I ended up missing the click on one item, so the merchant will not be selling me that particular $250 product today.