Amazon offers the Mars Chocolate Favorites Minis 240-Piece Variety Mix Bag for $15.23. Clip the 20% off coupon on the product page to cut it to $12.18. Plus, Prime members receive free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $8.18.) That's $3 under the price you'd pay at your local store.