Despite having extra cash in their pockets from tax rebate checks, a growing number of consumers are curbing their spending habits, a survey finds.

Roughly 90 percent of 7,000 U.S. consumers recently surveyed by said they're cutting back, up from 56 percent in a similar survey three months ago. While 69 percent said they've already spent their tax rebate checks, over 35 percent said they used the extra cash to pay off debt, rather than make new purchases, the comparison shopping site reported. About 14 percent said they used the checks for groceries and other necessities.

With gas prices rising, more than half of the survey respondents said they're taking care to plan out trips to the supermarket, clothing stores and other errands. Another 33 percent are searching for bargains online, the survey found.