Big Brothers Big Sisters of Central Minnesota's 100 Volunteers in 100 Days Campaign runs from August 1 through mid-November. YOU can make a difference in a child's life -- and have fun at the same time. All it takes is an hour a week, and all you have to do is be a friend. Become a Big Brother, Big Sister, Big Grandparent, Big Couple, or Big Family! Volunteer today. Be a friend and change a life. Call Big Brothers Big Sisters at 320-253-1616 now.