Anonymous wrote:Book lice. Don't worry, they aren't really lice. They are these tiny teardrop shaped bugs that like to eat mold and mildew so you'll find them in your bathroom and around your windows when it has been wet a lot. They won't bother you or your food (like ants do) but if you don't like them, you can just wipe down the bathroom and window sills with a diluted bleach solution or antibacterial product and they'll go away.
OP here. Thank you, PP. I hope they're what you say!
I dug out my Container Store de-humidifiers that I had forgotten I had, and placed one in that bathroom. I also squished as many as I could and will wipe down surfaces tomorrow after the kids have gone to school.