Today, Sept. 30 only, Amazon is offering up 20% off the Cards Against Humanity Board Game AND refill packs! That means that you can grab this board game for just $20 (reg. $25) AND you can also snag a refill pack for $8 (reg. $10). This is a GREAT deal considering this highly rated adult party game rarely goes on sale. Even better, shipping is free with a $35 order or get FREE 2-day shipping with Amazon Prime.