Head over to the social twist website and get your $2.50 Off M&M's Coupon! This coupon is valid on 15oz+ bags. You will have to share this coupon with friends via Facebook, Twitter or E-mail to access the coupon. If you prefer not to share, you can still access a $1.50 coupon. (Thanks, Cathy!)
Thanks!
I'm assuming we're not allowed to post a direct link to the coupon on coupons.com in the comments?
No, sorry. I was going to do that myself in the post but didn't want to mess with their promotion.