Catching fast-moving, yellowish-brown pests scrambling for cover when you turn on the basement or bathroom lights.
Repeatedly finding them trapped in bathtubs, sinks, or congregating near leaking pipes.
Discovering discarded exoskeletons in dark corners, which they leave behind as they grow and molt.
Noticing an increase in other nuisance insects, which serve as the primary food source keeping the centipedes well-fed.