Event Unknown Feb.2013

This is a very interesting article. It mentions several times the importance of the number 13.

Over the past week, both my boyfriend and I, have had our receipts at the grocery store add up to the amount of $13.13, (independantly and at different times that is). To my knowledge, this has never happened before. I also have come across other odd coincidences involving the number 13. I've always considered it to be a sacred number. Please let me know if anyone else has had such experiences and possibly an explanation of  what it might mean.