Amazon offers the Five Sugar-Free 15-Count Gum 10-Pack in Spearmint Rain or Cobalt Peppermint for $8.83. Order via Subscribe & Save to drop it to $8.39 and bag free shipping. That's about a buck less than you could expect to pay for this quantity at local warehouse club stores, although we saw it for $3 less in June.

Note: Be sure to cancel Subscribe & Save once your order ships to avoid being billed for subsequent shipments.