Navigating Backs of Cards
This short screencast shows you how to quickly and efficiently navigate through the cards in a list — when viewing card backs.
When viewing the back of a card, you can use the right-arrow and left-arrow on your keyboard to navigate to the next and previous card, respectively. (Interestingly, Trello also allows you to use the “j” and “k” keys — lowercase only; so this won’t work if caps-lock is on — to navigate among cards. However, the “j” key is assigned to “next” and the “k” key is assigned to “previous” — which I find curiously counter-intuitive.)