It's not that they are not reacting, he writes, "it's just that 2011 is not 2008." Some 67% of the 27,000 consumers surveyed say they are combining errands to reduce their driving and control their gas spending, making trip compression the No. 1 consumer response to pricey gasoline. Back in 2008, when gas prices soared and Nielsen conducted a similar survey, 71% said they were cutting down on driving by combining errands.