1. First date anniversary
2. The last day of school
3. A great report card
4. The last night together before everyone goes off to camp/summer program/college
5. The first night together after everyone comes home from camp/summer program/college
6. Visits from the Tooth Fairy
7. A promotion
8. College acceptances
9. Completing a major business deal
10. Nailing an audition
11. A health triumph or recovery
12. The anniversary of a major health triumph
13. Finishing a big project
14. A first haircut or a haircut for a Locks of Love donation
15. Accomplishing a personal goal like finishing War and Peace or improving pitch speed or running a 5K
16. When someone special comes to visit
17. Moving into a new house or finishing a renovation
18. Achieving a diet or fitness goal
19. Getting a role in a play
20. Opening night
21. Closing night
22. Winning a special game, match or tournament
23. Conquering a fear
24. Being quoted or having someone's picture appear in the newspaper
25. Checking off a bucket list dream
26. Getting a driver's permit or license
27. The end of a sports season
28. Music recitals
29. Receiving an award or honor
30. The anniversary of a pet joining the family
31. Getting elected or appointed to a position
32. Half-birthdays
33. Being accepted to a special program
34. Just because... (My dad and stepmom threw a fabulous party last spring "just because" they wanted to surround themselves with all the family and friends they love. It was the best!)

Ideas:

60 Best Happy Anniversary Messages and Wishes