BlinkMail is the latest creation that aims to help users organize their emails. The difference between BlinkMail and the other organizers is that you can organize your emails only using the arrow keys. Each key has to be programmed with a specific function but usesrsyou can respond, flag, and move messages to folders using the app. The app is free and you must have OS x 10.9 Mavericks in order to download the product. It’s available for download here.