Gas prices are high right now. Use these 6 tools to save on fuel

Just ahead of summer road trip season, Americans are feeling even more pain at the pump. The national average price for a gallon of regular gas hit $4.39 on May 1, according to AAA . That's an increase of about 8% from a month earlier, when gas reached $4.06 per gallon. Americans aren't just feeling price hikes in gas; they're seeing increases for other essentials like food. But there are ways to find cheaper gas, if you know where to look and what tools to use. …