Stack Exchange invites you to celebrate the end of a great year …with HATS! As you use your site, you'll discover hats and other items hidden behind certain actions. Collect all of them, some of them, or none of them, but be quick – the hats get put back in their boxes on January 9th!

Not a Documentary

I Am Your Father

post/vote on meta

Running Ragged

earn 150 rep on three non-SO sites in 15 days

011

collect 11 hats

Snaphat

answer in 30 min, +3 and accepted

First Responder

starred chat, ±12h from Jan 1, 0:00 UTC

What's Up, Doc?

earn reputation in Docs

Fiery

five +3 answers

Lifesaver

accepted answer to Tumbleweed

Mmmm Bacon

post or vote on December 30th

The NeverEnding Story

update your Developer Story

925

earn a silver badge

Philantropist

award bounty on last day

Abominable

close or delete

Third Time's A Charm

rep cap 3 times

Just Here for the Hat

help find 20 unique hats

Search You Must

search on 3 consecutive days

Bûche de Noël

post or vote on December 25th

Cutting the Cord

vote 7 times via app

Polymath

post a well-received answer on three non-SO sites

Epiphany

post or vote on January 6th

Hero of Questions

edit question closed by others, gets reopened

I Have A Little Dreidel

post or vote on any of the days of Chanukah

Maverick

answer a -3 question; later +3

Egoist

answer own question, both +3

Amped Up

share a link to a question on social media that gets 5 clicks

24

earn a gold badge

Loungin' Around

nice question asked via app

No Longer Grinchy

reopen or undelete