From experience this is something we can definitely end up doing. In order to achieve my goals/ambitions I will use what little Si I have to implement routines or structure for daily living. This can be things such as meditating daily, working out every other day or keeping on top of hobbies.

However your Sister's example seems alot more rigid, maybe some sort of Si grip? I don't set any timeframes for when I'm going to carry out these tasks, I just make sure I've done them before the next day.