Families in need of school supplies may sign-up for the program by calling Bayside Baptist Church at 394-6002, Superior Housing Authority at 394-6601 or the United Way at 394-2733. Starting Wednesday, parents also can sign their children up online at the Douglas County Chamber of Commerce Web site at www.superiorchamber.org . Parents will be asked to list their children's grade and gender, so Stuff the Bus organizers know what supplies are needed. All students must sign up by Aug. 17.