Alan and I were chatting on GTalk this morning and he had a brilliant idea …

You can add Annotations in Google Analytics for any major events that might effect conversion rates (or any other metric that’s important to you in Google Analytics).

Annotations are simple notes that you can tie to a specific date. They show up visually on the timeline as you view any graph. Super simple, but very powerful.

Here’s why it’s a great idea: You can look back at your traffic and see how different events affect your conversion rates. Trust me: You’ll forget when and how you changed the site, which means you won’t know what’s positively or negatively affecting your stats. Annotations solve that. Bam!