It's almost summer, which means it's time for another ACCO weight loss challenge. We are looking to keep it simple this time. The winner is the person who has the largest percentage weight loss by the end of the competition. In addition to the main prize, a weekly prize of $10 will be given to the person who has the largest percent weight loss each week. Weekly weigh-ins are obviously mandatory if you are looking to win the weekly prizes. Weigh-ins will be Tuesday mornings.