I would love my own personal calendar to see in a calendar view what each of my clients have scheduled that day and then also allow me to schedule with myself what I would like to do on a specific day for my clients (such as remind so and so about body stats tomorrow morning or write so and so's new workout plan, and etc.). I think this would help me see more easily what each client has scheduled for that day or in the future. I just think a calendar would be a little easier and feel more organized and digest then just a big list of scheduled things for my clients.