50% off a 3 month subscription to Book of the Month Club
When using the above link, you can enter "REFER50" to receive 50% off a 3-month subscription to Book of the Month Club. Normally a three month plan is $44.97, but you can get it for $22.49 instead. Just make sure to cancel your subscription before it auto-renews at the end of 3 months.
Each month you can select one book out of 5 in your favorite genres. And it ships free to you. With the 3 month subscription you get the total of 3 brand new books!