Like Expo Markers on their Facebook page and print a $2/2 coupon. Then head over to the Target website and print a $1/1 coupon. The 2pk is $1.50 at Target. Buy 2 packs for $3, use one $2/2 FB Q and the $1/1 TQ and they'll both be free!
Walgreens has the same 2pk on sale for $0.99, but a lot of people are reporting that their local Walgreens won't take the $2/2 Q because it exceeds the price of the product. Even though Walgreens coupon policy states they will adjust the coupon, reports say they still aren't.