EDIT: This is no longer available.
From what I can tell, this free Post-It pop-up notes offer is over a year old, but it doesn't expire until June so there's hope. I'm actually in dire need of some more post-it notes because I used my last one this morning. I wonder what I wrote on it…I should probably put up another note to check that out. *reaches for post-it* Ah, dang it!
When signing up, use the code n8r4ry and you should be good to go.
Also, I've noticed that most comments are going straight to moderation instead of being posted to HIF. I'm looking into the reason why and should have it fixed shortly.