Meijer coupon policy
http://bargainbriana.com/stores/grocery-store-deals/meijer/
Kroger coupon policy
http://savingslifestyle.com/sale-shopping/grocery-store-sale-shopping/kroger-coupon-policy-faq/
Walgreen's coupon policy
http://bargainbriana.com/walgreens-corporate-coupon-policy/
Will continue to add when I find them.