In celebration of Earth Day on April 22, Foodland Super Market has partnered with the Kokua Hawaii Foundation to encourage more people to bring reusable bags every time they shop.

Throughout the month, the “Kokua Hawaii, Go Reusable!” campaign is offering shoppers the option of donating their 5-cent reusable bag credit to the foundation to support its environmental education programs.

Shoppers normally may opt for a 5-cent credit per bag off their grocery bill or three HawaiianMiles from Hawaiian Airlines for every bag used. Since the statewide plastic bag ban began in 2015, Foodland customers have collectively earned more than $431,000 in bag credits and more than 10 million HawaiianMiles, according to company.

To entice more shoppers to forego plastic, the grocery chain has long offered reusable tote bags in fun “local” designs, starting at 99 cents.