German cockroaches often pass from item to item during transit, as they are a prolific problem in the logistic/transportation industries. When traveling, it is best to inspect your luggage after it has been stowed during any mass transit commute which includes planes, trains, busses, taxis and ride sharing providers. German cockroaches will ride into your home or business on ecommerce packages, freight, pallets, holiday fruit baskets, beer and liquor boxes, grocery bags and other purchases you make at the store.