I found this on the link (credit to link)

I addapted it a little bit. :)
The only rule is that this 30 Days Challenge is only about the Female Characters of TBBT.
(exept for day 20, 21 & 23 where you can add guys ^^)

Day 1. Favorite regular female character.
Day 2. Favorite recurrent guest female character.
Day 3. Favorite one-off female character.
Day 4. Least favorite female character.
Day 5. Favorite mother character.
Day 6. Favorite sibling character.
Day 7. Funniest female character.
Day 8. Favorite female character introduction scene.
Day 9. Favorite female character growth arc.
Day 10. Female character with the best dialogue lines.
Day 11. Favorite quote from a female character.
Day 12. Female character with the best clothes.
Day 13. Female character with the funniest facial expressions.
Day 14. Female character who deserves her own spin-off.
Day 15. Female character you most want to reappear.
Day 16. Female character with the most wasted potential.
Day 17. Female character the most screwed up by the writers.
Day 18. Female character you most relate to.
Day 19. Female character you aspire to be like.
Day 20. Favorite canon romantic ship.
Day 21. Favorite non-canon romantic ship.
Day 22. Favorite female friendship.
Day 23. Favorite het friendship.
Day 24. Favorite family relationship.
Day 25. Friendship or Family relationship the show dropped the ball on.
Day 26. Two female characters you wish had met.
Day 27. Relationship you wish had been explored.
Day 28. Headcanon friendship.
Day 29. Favorite female-centric episode.
Day 30. Free choice. ^^

**You don't have to post everyday

Note: You can pick the same character more than once.