Last year, I collected 12 hats in StackOverflow's Winter Bash.

This year, I have 15 hats: I could get some more, for instance by deleting one of my own answers, or by doing complicated things such as voting to close a question, edit the question, and then reopen the question, but I'm not that obsessed by those hats ;-) I collect hats because it's fun ;-)

The Winter Bash at the Stack Exchange Network is almost over, and this year I managed to collect 12 hats on StackOverflow. Let's take a screen shot before they are put back in their boxes:

As read on Stackoverflow: