We know most people are still going through with their Thanksgiving plans to get together with the family and enjoy food, football and fun. But what about the other Thanksgiving tradition: heading out to shop on Black Friday? A poll indicates that 70 percent of Americans plan to shop on Black Friday this year. The survey is done by NerdWallet — and conducted by Harris. Along with the lines come a warning for Black Friday. Experts are warning that those looking to find big bargains across the board might do well to sleep in. While retail watchers say there are some deep discounts available for at least part of the day, especially for clothing — other items are actually cheaper at other times of the year.