Make a plan according to time constraints and deadlines. Be flexible and determine whether it's best to work the easiest tasks that are a priority to lighten the list or if a complicated issue should be priority due to the amount of time it may take to reach the result or the ability to get something moving and work smaller tasks in between. Try to determine where you can batch like things together for time savings rather than working on one item at a time. Don't devote too much time to email unless a necessity until end of day when timelines are met.