Many companies have "hidden" stores with discounts on last or current generation products, says Daniel Rubino. He discusses how to save on tech this holiday season. He suggests trying Microsoft Edge for built-in price history and coupon search tools, and using browser extensions like ReviewMeta to gauge legitimacy of reviews. He also talks about how for gaming and tech, look to last year's top products for discounts. He also goes over browser extensions and other hacks for holiday savings. Tune in to find out more about the stock market today.