I've only done Black Friday once, since I dislike crowds and standing in lines; last year JoAnn's had a great sale on flannel, and I happened to still be up, so I went. Got there at opening time, and all the carts were already taken, and the line for the fabric counter was 20 people deep. I did find several bolts of flannel I liked, so braved the line. Since they use the number system I even got to sit down in the art department for a while. If I go again (only if there's a really good bargain on something I really want, and that's not likely with my current stash!) I will take a snack, a book, and of course my ever present water bottle. And get there even earlier, as the longer past opening the longer the lines.