Black Friday is the day following Thanksgiving Day in the United States, traditionally the beginning of the Christmas shopping season. Especially popular in the United States and Canada, the event is spreading to other nations such as Australia and the United Kingdom. On this day, many retailers open very early, often at 4 a.m., or earlier, and offer promotional sales to kick off the shopping season. The day’s name originated in Philadelphia, where it originally was used to describe the heavy and disruptive pedestrian and vehicle traffic which would occur on the day after Thanksgiving. Use of the term began by 1966 and began to see broader use outside Philadelphia around 1975. Later an alternative explanation began to be offered: that Black Friday indicates the period during which retailers are turning a profit, or “in the black.” On the other hand most customers spending their hard not yet earned cash will spend the next month in the red paying off that PS3, 4th LCD flat screen, new iPad or 16th pair of dinner date shoes. People wait just before midnight in below freezing temperatures outside a Best Buy store for Black Friday specials in Westminster, Colorado November 25, 2010. U.S. shoppers searched for deals on high-definition televisions and popular toys early on Friday, as retailers hoped that Black Friday would kick off the best holiday shopping season in three years.