I don't purchase many Black Friday or holiday sales online, and never in person at a store. But there are good deals to be had, so if we are going to acknowledge that we can get a few decent deals of stuff that we need amidst the crass holiday commercialism, then I suppose this is for you.

National Parks At Night - Black Friday 2019 deals

The Best Photography Deals of 2019 - Black Friday - according to Petapixel

Maybe this helps someone. I don't think it's listed on here, but I picked up Luminar 4 today because it is an amazing tool. I'll discuss this in another thread.