In Chinese culture, Oct. 10 (10/10) is a very lucky/auspicious day. Each year, there are lots of weddings and booking a hotel for Oct. 10 can be very difficult in East Asia unless you book way in advance.
This year, of course, we have 10/10/10. (Where will you be and what will you be doing at 10:10 on that day?)
More fun:
10 (base ten) = 1010 (base two)
(base ten): 10 x 10 = 100
(base two): 10 x 10 = 100
101010 in binary is 42, which of course is the Answer to the Ultimate Question of Life, the Universe and Everything. (Does that mean we'll finally know the question?)
Furthermore, 42 is divisible by 7 (a lucky number), as well as by 6 (often considered an unlucky number). So 42 is both lucky and unlucky. But which has more effect- a unlucky number of lucky numbers, or a lucky number of unlucky numbers?