If your room has a spider, it’s because your room has a spider’s food court. That means other bugs—ants, flies, silverfish, the insect equivalent of a drive-thru. Vacuum every corner, especially under your bed. I’m talking the zone where old granola bars and dust bunnies have formed a shadow government. No crumbs, no bugs; no bugs, no spiders. It’s a biological chain of command.
Don’t forget to empty your trash can daily. One banana peel left overnight is a five-star restaurant for fruit flies, which is like ringing a dinner bell for spiders. A spider sees a fruit fly and thinks, “Ooh, delivery!” So seal your trash, or at least give it a lid that locks like Fort Knox.