Groupon offers a $20 Coupaw credit for $10 or a $50 Coupaw credit for $25. That's a savings of as much as $25 and the best deal we could find for a Coupaw credit, although we saw these vouchers for $2 less and $6 less, respectively, in June. Coupaw offers daily deals on pet food, toys, accessories, and services for your pet. Shipping starts at $4.95. Voucher must be redeemed on one order and is valid for 90 days from purchase date.