Easy "To-do Swiping"
Its currently tedious to mark a mail as To-do.
- You need to first mark as Todo
- then you need to pick a due date
- then you need to close the popup
This is really tedious for a function which users will use frequently with almost all mails. Mailbox's implementation of the similar reminders feature is really easy to use. Just one short-swipe to the left and the picker for Due date shows up in a grid. 2 Clicks and you are done.