Underrated Management Skill: Explaining Why
The most important thing that you do as a manager is enable your team. One of the best ways to do this is to explain the thought process behind your decisions, empowering them to make the decision next time.
Trying to decide when to send an email out... or to who? Work through the challenge out loud with your team. Next time, if you aren't available (or you just want them to own it), they'll be able to follow your logic chain and reach a similar conclusion to you.
Not to mention, understanding why you're doing something is incredibly motivating. Double win.