In the economic times we face today, fuel price fluctuation is a factor of daily life. Gas has become one of the most costly commodities we have. Regardless of whether you drive a hybrid or a six person SUV, there are always ways to save money on gas. With that being said, we have compiled a list of what we think are the most innovative and creative ways to save some change on fuel.

High gas prices have had some obvious immediate effects on Americans: Hummer sales are down, commuting by public transit is up, airlines are charging for nonessentials, like baggage. But if $4 gas (or higher) is here to stay, we can expect our lives to change in other ways, too. The Op-Ed page asked 10 writers to reflect on the consequences — unexpected, unnoticed, unrealized, good, bad or indifferent — of really expensive fuel.

Face it, whether moving constantly or sitting in the garage for days on end, your vehicle is costing you money. Here are the considerations:

As Americans spend $41 million in foreign oil an hour and are left broke at the pump, what plan does Obama have to solve this problem?

Now you can see what gas prices are around the country at a glance. Areas are color coded according to their price for the average price for regular unleaded gasoline.

Making ethanol from corn is expensive. Better biofuels are years away from the gas tank. Farmers are reluctant to change their practices. But do we really have any alternative to biofuels?

Near what remains of the first sugar factory in Brazil, built in 1877 with a sign in Latin over the entrance that translates as “Sweet is the Reward of Work,” Danuza Gomes da Silva swings a glinting knife as she makes her way down the length of a field cutting cane.

"Air New Zealand and Boeing are secretly working to create the world's first green aviation fuel, made of wild algae..."