Earn points for every dollar you spend. Redeem those points for money off of your next purchase. Current point redemption rate is $1 for every 100 points you have. There are currently no limits to the amount of points you can redeem at any one time. Keep an eye out for points specials which will increase the amount of points earned on certain products.
Points can not be transferred to other accounts and have no cash value (i.e. you can not redeem points to get cash back on purchases).