One of the defining characteristics of my grandmother's appearance, at least in my eyes, has always been an ever-present piece of dental floss hanging from her teeth. When I was young I spent many nights at my mom's parents' house, and whenever she would get ready for bed, she would become distracted by some chore of some sort, which would lead to another distraction, and then half an hour or more would have passed by, and she'd still have floss hanging from her teeth. It seems like I'd see her with dental floss stuck in her teeth every time I'd spend the night there, and it eventually became part of my mental picture of her.
I'm fairly certain, now that I think about it, that I have inherited this quirk from her. Not the dental floss part specifically, but in general: I too am incredibly easily distracted by simple chores when I'm trying to focus on a single mundane task, and I too will end up starting to do so many things while I'm brushing my teeth that sometimes I get confused about what I was even doing in the first place.