As opposed to most spiders that use webs to ensnare their prey, wolf spiders use their speed to do their hunting. Since they must move around a lot to hunt and find food, they are seen often by people, and even though they do not pose a threat to humans, most people find them scary to see as they are hairy and can grow up to almost an inch an a half. They are very beneficial as they kill a number of pests that can damage or ruin crops or gardens, but even still they are considered a nuisance pest. While they may not do searching for a way inside your house, if they are looking for their next meal and end up inside, they will almost certainly stay. The best way to ensure prevent the occurrence of wolf spiders in your home is to ensure there are no gaps in your windows and doors, and to have screens over all your attic and foundation vents.