They have been doing the double coupon events roughly once a month since January. The details change for every event though...this weeks event is double coupons up to $2 and 2 months ago it was triple coupons up to .75 and double coupons from .76 to $2. I find a lot of helpful info on afullcup.com and hotcouponworld.com. Someone there usually posts a thread with all the free/cheap stuff with coupon matchups. It is very helpful. Have fun!