The holidays are all about tradition, right? Year after year we visit Santa, bake cookies, decorate the tree, attend parties, light up the front yard, and shop, shop, shop. But our shopping habits have changed over the past few years, partly because of the economy and partly because of technology. Layaway, early shopping, discounts, online spending and mobile payments are challenging tradition and may likely become the "new normal." Here's a look at some new habits that are changing the way we shop during the holidays.