Rising food costs and the week economy are chief concerns of women, according to a Food Factor survey of more than 2,100 women, conducted by Better Homes and Gardens, and they are changing their behavior as a result. On average, women spend $105 per week on groceries - $34 more than they did two years ago. As a result, 84 percent have changed their buying habits, 83 percent have cut back/limited food purchases, and 70 percent have switched stores.