I am interested in rising conventions about how we refer to the current year. I like the reduced number of syllables in "March thirteenth, two thousand" as opposed to "March thirteenth, nineteen nintey-nine."

I still have trouble (and have for about two years) easily giving the expiration date of my credit card over the telephone. For an expiration date of 06/02, do I say "Oh six, Oh two" or "six, Oh two" or scrap everything and say "June, two thousand two"?