For the lone spider you spot chilling on the ceiling, grab a clear cup and a piece of paper. Slowly place the cup over the spider, slide the paper underneath, and gently escort it outside.
Release it with a firm but kind speech: “You are now a free spider. Go live under a rock, not my sofa. Goodbye forever.” Close the door quickly.
This makes you feel heroic. And you avoid the guilt of killing a creature that’s technically helping you by eating other bugs. It’s a win-win-win.