Back in the day people worked in the coal mines or as chimney sweeps, walking to work uphill both ways in the snow. Perhaps people these days need a dose of that hardship to whip them back into shape of what really hard work was like - or maybe they can just play pretend and be a chimney sweep this Halloween.
A chimney sweep outfit is pretty simple to make. Just get a pair of dark pants, and white or black shirt, and a pair of suspenders or a dark vest. Finally, get one of those beret-type hats that chimney sweeps tended to stereotypically wear in the 19th century. You can get these all separately or find them together in a pre-made chimney sweep costume.
The first and most important accessory is dirt. Chimney sweeping is hard work so you should have soot and ash smothered on your cheeks. Now, don't go overboard here. You still want some of your face visible.
You can find sweeper at party stores sometimes, especially online, or as part of a pre-made chimney sweep costume. Barring that, you might be able to make your own out of a metal pole and some long, black fibers of some kind. Ready to make yourself like Bert from Mary Poppins? Put on a chimney sweep costume this Halloween and show the world what real hard work was like!