Make sure you have robot-instructions in your to-do list. In the rush of the day you'll escape items that require decisions. Using verbs is a simple way to test it.
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As much as it may seem handy to keep many windows open in your screen, ready to work with, they are more likely to become a focus trap. Instead, have a super easy super quick way to open whatever you want in a blink and keep fewer windows and tabs open.
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The meaning you give to your to-do list is the key to pressure relief as well as to improve focus direction.
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Use at least a part of your day to Deep-Focus activites. Allow yourself to disconnect from everything(!) for a period of time and dive into some high-value complex tasks.
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Perfectionism can get in the way. Keep in mind what's the purpose of whatever you are doing: that will give you solid success criteria and optimize your overall productivity.
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