The first thing you should do is set a strict budget for yourself. Decide whether you're shopping for just yourself or if you want to snag some cheap gifts for the upcoming holiday season, and accordingly give yourself a firm but fair budget of how much you can spend during Black Friday.
The second is to have a look at online retailers before Black Friday and pick out items you're interested in or that you'd like to buy. Then bookmark those pages so you can easily and quickly find them again when Black Friday deals start. We also recommend bookmarking this page and checking it regularly as we'll be updating the page with each brand's Black Friday deals ahead of Black Friday.