If you do see a spider inside, please don’t scream and set your house on fire. Get a clear plastic cup and a piece of stiff paper. Trap the spider gently, slide the paper under, and take it outside.
This is the kindest eviction possible. Most house spiders are harmless and actually eat gnats and flies. You’re not a monster; you’re just setting a boundary. “You can have the garden, but not my couch.”
And if you’re really scared? Remember: spiders are afraid of you too. You’re a giant, warm-blooded creature that could accidentally sit on them. They’re not plotting. They’re just clumsy roommates.