Amazon offers the Hershey's All-Time Greats Snack-Size Assortment 105-Piece Bag for $9.99. Check out via Subscribe & Save to cut that to $9.49 with free shipping. That's $2 less than what you'd pay in local stores. It includes snack-sized Hershey's Milk Chocolate Bars, Whoppers Malted Milk Balls, Kit Kat Wafer Bars, and Reese's Peanut Butter Cups.
Be sure to cancel your subscription once your order ships to avoid being billed for further shipments.