 Spending at gas stations was down last month thanks to falling gasoline prices. That left people with more money to spend at restaurants, home and garden centers, and furniture stores. Internet sales rose nearly 2% in June, and they could get a boost in July as well. E-commerce giant Amazon begins its two-day Prime sales event today. Many rival retailers are offering their own discounts. Walmart is hoping to ring up more clothing sales during the back-to-school season.