CYBERMONDAY305 is the code for 30% off at lulu!
Now is the time to buy that copy of Demonspore and whatever copies of Knockspell Magazine you need (or player-copies of the Swords & Wizardry rules, or whatever).
The coupon expires after the 28th -- oddly it doesn't seem to exclude pdfs like most of their deals do. I don't know if that's an oversight or not.
Corrected - I said 35% but that's for a bulk order and uses a different code.