What is a preference card? It's a card that surgeons fill out so that things can be set up for them the way they prefer. How can putting together your own personal preference card help you, being that you are (most likely) not surgeon? It may just help you feel more confident about your choices.
Gretchen Rubin, writing for Psychology Today, suggests that filling out a preference card can help you feel confident in your preferences. Ultimately, that may help you understand what's most important to you and help you keep it in mind as you interact with people. When you know what's important to you and understand why, you'll have an easier time both remembering and asking for those things in various situations. Gretchen decided to imagine her own preference card for work and what would be on it. Here are a few examples:
Gretchen prefers to work at a desk with a lot of bare surface space.
Gretchen prefers to clear out her email inbox before turning to more difficult work.
Gretchen prefers to do original writing away from her home office.
You don't have to make a preference card just for work. You can also make a card for time spent with friends, travel, and various other topics/situations. Taking the time to think about these things and write them down will help make them more important and help ensure you take them into account as you go through your day.
In Which I Create 'Preference Card' for Myself [Psychology Today]