Conspiracy theories aside, it was no surprise there has been a rise in gas prices. This happens each time the economy starts to stabilize. In a few weeks the oil companies will announce their record profits. AP suggests people are changing their driving habits. In 2011, Americans spent 8.4 percent of their household income on gasoline, or about $4,155, compared with 6.7 percent in 2010, according to experts at OPIS. Yes, spending $57 per fill up gets attention ($4.30 per gallon) and the price increases are probably not over - summer will bring even higher prices. How are you changing your habits or are you?