An infestation of insects in your home does not mean you need to call the exterminator or reach for chemical bug sprays. What you should do is figure out the food source of the infestation. Cleaning up spills or finding out where insects are entering your home is the best first measure. Seal cracks and do a thorough cleaning to see if that fixes the problem. If that doesn't work, look into all-natural repellents instead of chemical sprays.