Pickles Jar Theory
This theory teach us the right way to manage time, it's very simple to understand and execute, it also makes us aware of the fact that distractions that lead to mismanagement that should be avoided completely in order to follow the right track (Sengupta, 2011). The basic idea is that you should schedule only your high priority tasks for the day and leave the gaps in between for less important activities (email, browsing and so forth). This is supported by the analogy of a pickle jar, where you can fit more in the jar if you add large pebbles first before pouring in smaller pebbles and sand (rather than adding the largest pebbles last when they will be unlikely to fit).