Focus

What is impossible, however, is concentrating on two tasks at once. Multitasking forces your brain to switch back and forth very quickly from one task to another.

This wouldn’t be a big deal if the human brain could transition seamlessly from one job to the next, but it can’t. Multitasking forces you to pay a mental price each time you interrupt one... See more

Maintaining focus becomes easier because ideas become less interesting. “Experts literally experience a different world within their specialism,” Tom Morgan pointed out . Experts perceive more layers and details, they see patterns and nuances invisible to others. Their experience of the same domain is richer, more interesting, and filled with an... See more

“There’s nothing I revile quite as much as a dilettante,” Seinfeld told GQ , “ I don’t like doing something to a mediocre level.” Escaping mediocrity requires focus. “You have to dedicate yourself to these great things,” he added. “And I don’t believe in being good at a lot of things—or even more than one.”

as Jeff always noted, you can make micro-adjustments in the long run to tweak the profit leaks. For some really large, heavy items, you can tack on shipping surcharges or just remove them from qualifying for Prime. These days, some items in Amazon are marked as "Add-on items" and you can only order them in conjunction with enough other items such... See more