The following is an updated list of companies offering an additional free 10% gift card if you turn your entire stimulus check into a gift card. This means if you turn in a $300 stimulus check, you will get back a gift card worth $330.
Kroger
Sears (valid from May 14 to July 19)
Kmart (valid from May 14 to July 19)
Lands’ End (valid from May 14 to July 19)
Fry’s (valid from May 2 to July 31)
Pick ‘n Save
Copps
Rainbow
All SuperValu Stores (Cub Foods, Acme, Albertsons, Bigg’s , Fresh Farm, Hornbacher’s, Jewel-Osco, Lucky, Shaw’s/Star Market, Shop ‘N Save, and Shoppers Food & Pharmacy. Offer valid from May 2 through July 31. Stimulus checks or tax refunds can be use to buy gift cards in $300 increments and the store will add an extra $30, for a $330 total).
Add Wal-Mart and Radioshack: The source is on CNN.
Austin, thanks for the info. I will update the list soon.