Remember when, just before Memorial Day, experts predicted that gas prices wouldn't reach beyond $2.50 a gallon this summer? Well today, the average price of a gallon of gas is already $2.63, according to the AAA Fuel Gauge Report.

While that’s not nearly as bad as the $4.11 per gallon drivers were paying last July, the price of gas has risen 55% so far this year, according to the Oil Price Information Service.

“I am amazed by the capacity for crude oil and gasoline prices to act in even more manic fashion than in the prior 29 years,” says Tom Kloza, chief oil analyst at OPIS.

So what can you do to find the cheapest gas prices? You can try or MapQuest. If you have certain Garmin (Stock Quote: GRMN) or TomTom GPS devices or a cell phone with Verizon Wireless VZNavigator service (Stock Quote: VZ), you can get nearby gas prices, but for an additional fee.

You can also save on gas by taking a bike or public transportation as much as possible.

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