Some business books advise you to reduce wasted time and increase your time for activity. One example is to wear shirts of identical design and color every day.
If you’re so worried about what shirt to wear in the morning, it’s a good idea to buy the same shirts for five days. I don’t bother, but rather enjoy deciding which shirt I wear.
One piece of advice from me. Let’s simulate your behavior the next day before going to bed. Do you have a meeting? Who do you meet? Answers to these questions almost determine the clothes the next day.