CHICAGO (UPI) - Eric Anderson, 25, was considering his marriage proposal options when he noticed the Sheridan Road and Surf Street bus shelter used almost every day by his girlfriend, Rachel Clark, 28, had available ad space... he contacted the company that manages Chicago's bus shelters, and officials agreed to rent him the ad space for one week at a discounted rate... "Rachel! I love you! Let's be a team forever! Will you marry me? XOXO, Eric," the message read.