NEW YORK - Not all Americans tucked into turkey with their families on Thanksgiving. Some were out shopping, hitting sales ahead of the crowds expected Friday.

After a year of cautious spending and worry over an uncertain economy and high unemployment, more stores this year extended hours into Thanksgiving Day, a day when stores are traditionally closed.

Many grumble about the relentless march of commercialism creeping into the holiday. But at least some shoppers took the bait.

While crowds appeared relatively light compared with the weekend ahead, the extended hours drew in overseas visitors, those who have to work Friday and some who couldn't resist a good deal.

Sears, Kmart and some Sports Authority, Gap, Old Navy and Banana Republic stores were among those open Thursday.

At an Old Navy in Lutherville, Md., Brenda Tarver, 65, a retired postal employee from Baltimore, was dragged out of the house by her daughters, but was finding good deals on clothing.

"They've got good prices and a variety of items. A lot of things are 50 percent off," she said.

Willy Gerelbest, 45, a counselor from Brooklyn, was shopping at Kmart in New York for sneakers on sale for $9.99.

"I saw the advertising and just wanted to check it out," he said. "Tomorrow I have to work."

David Friedman, president of marketing for Sears Holdings Corp. said the decision to open 7 a.m.-noon on Thanksgiving Day stemmed from positive response to a similar "early Black Friday" sale in November, as well as success with Kmart, which Sears also owns and has been open on Thanksgiving for 19 years.

Workers will earn holiday pay and still be home in time for a Thanksgiving meal, Friedman said.

At the Sears store at the Mall of America in Bloomington, Minn., the largest U.S. shopping and entertainment complex, sales were fueled by a charity walk at the mall.

The walk - and a good sale - drew Helen Schultz, of White Bear Lake, Minn. She bought a 19-inch RCA LCD HDTV for $129.99, saving $70. But she said wouldn't have bought it Thursday if she hadn't been there for the charity walk.

"I don't think shopping should be done on Thanksgiving," Schultz said. "But they need to make money."

Toys R Us CEO Jerry Storch said the company decided to open at 10 p.m. Thanksgiving Day because reaction was so positive to the stores' midnight opening last year. Before that, stores opened at 5 a.m. on Friday. He expects brisk sales of hot toys like Santa-ma-jig, a green and red singing doll.

"Customers lined up at 8 p.m. on last year. They wanted us to open earlier," he said.

A similar promotional blitz greeted online shoppers Thursday, though the holiday isn't a bonanza there, either.

Last year, consumers spent about $300 million online on Thanksgiving, compared with $887 million on Cyber Monday, according to comScore.

According to Akamai Technologies, which tracks traffic to 270 retail sites, traffic peaked at 11 a.m. and was up about 14 percent from Wednesday.

Early data from Coremetrics, an IBM company, from early afternoon showed that online Thanksgiving Day sales were up about 10 percent over Thanksgiving a year ago. The average order size was down 18 percent from a year ago to $130.50, but that figures was getting bigger as the day went on.

John Thompson, senior vice president and general manager of Best Buy Inc.'s website, said this year the company reached out to its frequent online shoppers and gave them early access to deals.