Shoppers crowded malls today to exchange gifts or look for bargains. The main parking lot at Rosedale Shopping Center was full by 10 o'clock this morning. Retailers are counting on a post Christmas rush to make up for disappointing holiday shopping figures. Steven Roorda (ROAR-dah) is a Senior Equity Analyst with American Express Financial Advisors in Minneapolis. He says overall sales this season are off about four percent from last year: