'5am' club (jam in a couple of hours before everyone is awake, at least 2+ times per week)
'Friday afternoon' club (the week is over, so now I have some peace and quiet to plan and work on my business)
'Daily' club (I work on my business daily, at a specific time, at least 2+ times per week)
'Weekly' club (I work on my business weekly, at a specific time, for at least 2 hours)
'Whenever I have time!' club (when I get around to it!)
Or do you have some other system? (Let me know what it is!)