LEE COUNTY, Fla.- Gas prices are on the rise again, but how much is too much to hit the road? At what point will drivers change what they do, based on the price at the pump?

It turns out that once a gallon reaches $3.50, motorists start to make money-saving changes, accordign to a new AAA survey. Almost one in four drivers say they will think twice about hitting the road and will make changes to their travels once gas reaches between $3.50 and $4.00. But one in three said they will not make changes until prices are between $4.00 and $4.50.

The top changes consumers cut back on were shopping, dining out at restaurants and going out for lunch during the week. Consumers are pretty evenly split on who they blame for the spike in prices, with the most blaming oil companies and others listing not enough domestic drilling, the Middle East and the President as the chief contributors to the price at the pump.      

According to the most recent numbers, we are right on the cusp of that breaking point. For the fourth straight week, gas prices have risen and now national prices are back above $3.50. The average price for a gallon of regular gas rose two cents overnight to hit $3.50.

Southwest Florida prices rose, too. Expect to pay $3.41 a gallon, if you fill up today.