Mail Gesture of the Day
Maybe I'm a bit slow but my latest accidental discovery is the gesture to show the Inbox in Mail on iPad.
While in portrait orientation, slide a finger from left to right to show the current mailbox. To hide the mail box, slide from right to left (or just tap outside of the mailbox).
Of course if I just read the damn manual, I would have learned this much sooner.
This changes my entire mail reading experience on my iPad.