That's so sweet Sara. You know I did something like that once. I went to a wedding of a coworker who was about 10 years younger than me, and I wrote her a letter which I told them to open on their tenth anniversary (and, they made it!)
In the letter I told them all the things they would experience in their thirties.....as I was knocking on the door of 40 (back then!!),,wish I still was.
Anyway, Happy Birthday to Pam, that was another one of the wonderful birthday fics I've read today!