These appear to be free, I haven't confirmed it but I think you get a $10 credit for signing up too....
I found this on a another website but can't remember which one! This site is a "sale" site for etsy. I love it!! http://heartsy.me/deals/
Current sale buy 1 get 2 free @1.99. Printable coupon here for $1.00 off each roll. http://www.3m.com/brands/scotch/promos/welcomecoupon.pdf
Separate names with a comma.