Faster is not always better. With the Mañana Mail add-in for Outlook, you can send an e-mail at 9am the next day with a single click, and you can edit or cancel it up until that point. It also gives you about ten seconds to undo sending any email. Research shows that important emails are often not urgent. Give yourself the chance to think it over, and let the recipients read it carefully at work instead of while they are distracted at dinner.