Black Friday weekend drew good crowds -- of penny-pinching shoppers

The holiday shopping season got off to a good start over the Thanksgiving holiday, with large crowds on Black Friday that continued through the weekend. But that doesn't mean retailers are out of the woods yet.

By most measures, the weekend's sales were a success: $41.2 billion in merchandise went out the door, compared to $41 billion last year, according to the National Retail Federation. Stores were full, and registers rang, but the heavy traffic was offset by more penny-pinching shoppers, who are seeking discounts more than ever.