If you're an OS X user, you've probably seen a number of birthday reminders pop up in your Notification Center. If you're not a fan of these, Lifehacker alumnus Adam Dachis shows you how to turn them off.
All you need to do is open up Calendar, right-click the birthday box on the left side, select "Get Info," and check the box marked "Ignore Alerts." If you're getting a bunch of notifications for people's birthdays, you might want to look for other birthday calendars under Facebook or Google and do the same.
How to Fix OS X's Annoying Birthday Calendar Notifications [Supercharged]