Roach infestations are possible even in the cleanest of homes. Roaches are attracted to food sources and will devour the smallest of crumbs commonly left behind in pantries and storage cabinets. This makes it increasingly difficult to combat roaches because eliminating everything roaches feed on is virtually impossible. You can, however, take some precautions including sealing perishable items like cereals, breads, crackers, pastas and pet foods in airtight plastic containers. Minimizing clutter, cleaning and using properly-installed drain strainers, repairing leaks, caulking drains, faucets and other points-of-entry and not overwatering you lawn and landscapes will all aid in minimizing the chance or a roach invasion.