Those who dared to head out to stores on Friday, the busiest purchasing day of the year, probably didn't leave home without a smartphone and a few strategic shopping apps. Technology has long influenced how we shop, and technologists are doing their best to make sure that continues. The future of shopping at a store? It looks a lot like shopping online, with personalized suggestions, no waiting and help that pops up out of nowhere when you pause for a few seconds. In the future, sensors and cameras in stores could alert a store employee's smart watch that a customer has been waiting for 10 seconds at a dressing room. Or an in-store screen may suggest gifts that are similar to ones you've purchased at the store in the past.