The most typical signs of an infestation are frequent sightings of spiders around your house, the abundance of spider webs, egg sacs hidden in hard-to-access places, and an increased number of flying insects. If you spot a spider, try searching your attics, closets, and wall-ceiling intersections to see if you can find others. Check your basement, shed, and any dump places inside and outside your house, as some species prefer wet areas.