Anniversaries and birthdays mean a lot to me but not because of the numbers. However I do pay attention to numbers. I used to have an incredible memory for numbers, like the phone number for a car repair shop in my neighborhood in college.
Combinations of numbers often mean something to me. Some examples: 092768, 120370, 071809. By the way, none of those are passwords to anything.
I see numbers in color. Psychologists reading this might be able to explain that to me. My favorite number is 7 (which I see in dark green). I'm also fond of 3 (yellow) and 5 (black).
And just for the hell of it, I'm going to attempt to post this silliness today, 1/11/11, at 11:11 AM.