You may soon have to pay 5 cents per plastic bag when you buy your groceries and other goods across the city.

Toronto Mayor David Miller unveiled this proposal Wednesday morning as a way to cut back on the amount of bags going to landfill sites.

Grocery retailers are supporting city hall's idea as an alternative to an earlier proposal by the city to offer a 10 cent per bag discount to customers who use refillable bags.

Miller says he supports the plan, and it will go before council on Dec. 2. If approved by council, the bylaw will apply to all retailers and go into effect in June 2009.

A flat-fee paying program is already in place at some grocery stores, with discount supermarket No Frills charging shoppers five cents for a bag