When is the last time you sent a handwritten not to someone you met at a business function as a follow up? Not an email, but a real letter (US postage went up to 41 cents today, FYI)
I know, you think about doing it,....but do you ever actually do that kind of thing?
If no, then you should. NOW.
If yes, congratulations, you are ahead of your competition.
Have A Great Day.