Just by setting up reminders for yourself, you can have a faster working speed. Setting up reminders is a great advantage in your work by focusing first on those big projects, proposals, and such you can ease some of your workloads. By doing this, you can then quit multitasking. However, it may sound stupid, multitasking won't do you any right, nor would it increase your work productivity, it would just put some stress on you, resulting in slow work productivity.