How to celebrate (by level of chemistry geekiness):
Note: In this context, I consider myself "intermediate."
- Beginner: Learn about the scientific method, the defining process common to all science.
- Intermediate: Read this timeline of chemistry. Chances are you'll find something you didn't know. My personal favorite is Hermes Trismegistus, semi-mythical god-king and inventor of alchemy.
- Advanced: Solve one of these.