Do you plan on doing some holiday baking this week? Now’s the time to get Christmas M&M’s bags for cheap at Walgreens! M&M’s bags are on sale for $2.50. Stack a $1.00/2 printable manufacturer coupon with a $1.00/2 store coupon from the Walgreens December Savings Book, found in the front of the store close to the weekly ads. Pay $1.50 per bag.