My wife Krisi wears a Fitbit.
If you don’t know what that is, it’s a small device she wears on her wrist that keeps track of the number of steps she takes each day.
My sister has one too. Because she and Krisi are Fitbit friends online, they can see each other’s step counts in real time. They have an ongoing friendly competition to see who can get the most steps for the day or week. Krisi can be pretty competitive which is why it’s disastrous when she forgets her Fitbit at home.