Cinnamon's eugenol content gives it a strong smell that can repel cockroaches, which makes it an affordable solution that can keep homes free of roaches.
Identify the common roach-infested areas of your home, including kitchens and entrances, such as doors and windows. Then, sprinkle cinnamon powder directly to the surface.
Alternatively, put a few spoonfuls of cinnamon powder in a bowl to keep the spice more contained, then set up the bowl in the desired parts of your home.