It’s the invasion of the lady bugs! Or really the Asian lady beetle. They are coming! As I write there is one on the windowsill in front of me. These beetles are great in the garden, they eat pests like aphids but when they invade they home they can become a problem. They go everywhere and leave yellow stains behind. Not to mention they shells when they die. As for what to do about them try vacuuming them up or preventing their entry by sealing up cracks around your house. I wouldn’t personally go so far as pesticides for them but it is an option. The University of Kentucky Department of Entomology has a great article for more information!