Working in the kitchen late at night, John noticed marks in the dust covered windows. A fascinating pattern of marks, triangular and linear, was in the dust. Ladybug tracks — the invasive, house-infesting ladybugs. I photographed the ladybug trails as soon as he pointed them out to me. How dirty have windows gotten when you can see bug tracks on them? It's pretty bad. But I still haven't bothered to clean the windows because the dust here is still unbelievable bad.