Flying Pie Pizza on State Street in Boise gives away pizza every day to whatever the group they have identified on their billboard: people with a particular name; people who have been to Peru; that sort of thing. Today's announcement was for those who know pi to 150 digits. Of course, what is today? 3/14. (Or to make it more obvious: 3.14.)
Oh yes, Flying Pie makes a very nice pizza--a welcome change from the chains.
UPDATE: How to remember 150 digits: Sasha Volokh came up with a mnemonic for remembering the first 167 digits.