1. Make a chart for the moon phases.
2. If you do tarot readings, you can write down what cards you drew and how accurate they are.
3. Write down crystal, color, planetary, and herb correspondences.
4. If you worship deities, you could write about them.
5. Write down spells you’ve tried and how they worked.
6. Write about the holidays you celebrate.
7. You can personalize it by decorating the inside/outside with symbols, different colors, or doodles.
8. Draw symbols/sigils and their meanings.
9. Make your own sigils.
10. Record how you celebrate your holidays.
11. If you practice kitchen witchery, you can write down recipes.
( Originally posted by @witchstuff101. )