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Birchbox sent unique promo codes for $10 off a $35 purchase in the December box. Even though that is a tick shy of 29%, which is a little over 1% less than the amazing Black Friday special, I was very happy with this deal. For one, I received 70 points for reviewing my December box and sharing it on Facebook. Those points pushed me over 200 giving me $20 to spend in the shop. Without those points, I could have saved an extra 1.43%, but I would have needed to spend an extra $10 to do so. I also would have missed out on the beautiful gift box. Waiting served me well.