Batching all the similar tasks you have to handle in a certain period can be a very useful support to get work done more easily.

In other words you can work smarter if you do tasks that aim in the same direction at a specific time of the day respectively of the week. This means for example that you do your customer support at a certain block of time and then go on to the next. This keeps you into the subject and you don’t have to switch between them during the day again. Some more points are elaborated here.