By date :
1/1/11 (1st january 2011)
11/1/11 (11 january 2011)
1/11/11 (1st november 2011)
11/1/11 (11 november 2011)
Also add your currently age to the last two digit of your birthday.. it will be 111.
for example : my birthday 1960 , i am 51 years old... so 60+51= 111
What's more, there is 5 saturday, 5 sunday and 5 monday in october 2011. that can see one time in 823 years..
this year is for money... if you send this info to the your 11 friends, so the money will find you automaticly..