Just e-mail the person or send a text message. 
No, I'm talking about the writing style you use to express the date, month, and year. I personally prefer the digit formats separated by slashes, as in 01/23/12 or 01/23/2012, but for formal correspondence I write out the month, as in January 23, 2012.
What say you? Do you have any personal preference?
EDIT: I added a poll.

No, I'm talking about the writing style you use to express the date, month, and year. I personally prefer the digit formats separated by slashes, as in 01/23/12 or 01/23/2012, but for formal correspondence I write out the month, as in January 23, 2012.
What say you? Do you have any personal preference?
EDIT: I added a poll.