"Did you know that the Calculator app built into iOS has a hidden swipe gesture that allows you to delete those digits that you tap accidentally? No, neither did I until this morning, when I discovered this nifty little backspace trick by accident."
For those of you who are super-confident about your iPad knowledge, I'd like to propose a challenge. Go through and see how many features and shortcuts you didn't know about, leave a comment with the number at the bottom of the post - and be honest!