My g/f finds a centipede in her kitchen's double-bowl stainless sink many mornings. Before going to bed, she plugs both drains with standard stoppers (so they can't be coming upwards from below the drains) and dries both bowls.
She believes that if she leave the fluorescent ceiling light on all night, there won't be centipedes in the morning. Still need many more night to confirm that theory.
She lives in an apartment whose floor is below outside soil grade by two or three feet. (The apartment still has full-size double-hung windows.) Just moved in two months ago, so she doesn't know if this is a long-term problem.
I've made a casual inspection around the outside perimeter of her apartment. Nothing obvious (like cracks or wall penetrations or termite mud tubes) to my amateur eye. Inside, under the kitchen sink she doesn't see any activity.
While the recent weather in central New Jersey has been humid, the real question is how do the bugs find their way into the sink? They are not falling from a hole in the ceiling above the sink. There is a double-hung window above the faucets, but it's always closed. When I was there last night, I didn't think to inspect for openings at the bottom of the window frame.
Even though she knows they eat many harmful insects, she wants them OUT.
Thanks for your suggestions.
R1