Gas prices jumped 5 cents a gallon last week on average, says AAA's Fuel Gauge Report, even as oil prices stabilized a bit. When gas prices reach $4 a gallon, motorists begin to change their habits.
Fuel surcharges send the price of plane tickets higher, but lax demand may counter hikes.
The cost of a new car or airfare is expensive this holiday season. But consumers can get a good deal on flat-screen TVs.