When you're at your best
Schedule your most vital activities when you are at your physical and mental peak. You have a two- to four-hour block of time during the day when you operate at peak efficiency.
Source: William T. Brooks, sales author
Your concentration is keen, your creative powers are more acute and your ability to do more than one thing at a time is sharper. Pinpoint this time and schedule your most important activities within this block of time.