Amazon offers the
Eclipse Gum 180-Piece Bag in Winterfrost or
Polar Ice for $5.98. Order via Subscribe & Save to drop that to
$5.68. With
free shipping, that's the best deal we could find by $2, outside of the below offers. (For further comparison, in December we saw it for a buck less.) Remember to cancel your subscription after your order ships to avoid being charged for subsequent purchases.
A close price: Walmart has it in
Winterfrost,
Spearmint, or
Polar Ice for $5.98 via in-store pickup, and Target offers it in
Winterfrost or
Spearmint for $6.07 with free shipping when you add it to your cart as a subscription.