As prices jump back and forth between retailers, savvy shoppers can pinpoint online deals to save big money during the holiday gift season... but it's even better when someone else does the work for you.Black Friday sales and Walmart go together like peanut butter and jelly. Also,despite facing intense holiday competition from Amazon, Best Buy, Target and other online retailers, Walmart still has some of the best Black Friday deals that you'll find in real life or online.