Black Friday is no longer just the biggest shopping day of the year—it’s the biggest shopping event of the season. It starts on November 25 this year, and to make sure you get the best deals, you need to do a little bit of research. Here’s what you can do to make sure you don’t miss out on a good deal on Apple products. How to get the best Mac deals this Black FridayBefore you buy always check the generation of the model that is discounted–the best deals may be on older models. These older models may be new units that the reseller is selling off, but they may also be refurbished models, in whi…