With all sorts of interesting improvements on the horizon, this may be one of the most useful to all players. Surely we've all sold something we didn't mean to, but according to the follow update:
The days of accidentally buying or selling an item you didn't want are gone forever! Shopping carts will provide you a way to double check that you are buying and selling the intended items. This will eliminate quickly double-clicking on items to buy/sell and getting or selling the wrong thing because the inventory shifted. Also, items that cannot be sold (collectables and locked items) will no longer appear in the sell window, so if you want to do a bulk "add all" you will only add those items that can be sold and haven't been protected. See below for a screenshot of the new shopping cart.
But wait, there's more! Read about item locking by following this link.
