A wise mom of 11 once told me what she did with her older/teen boys when she grew tired of nagging at them to get up at 7am, do their morning routine, etc. She filled a jar with dollar bills (one for each day). Told her kids they could have them, as long as they did xyz by this time and without her reminding them. If they failed, she simply got the dollar that day. At the end of the month, whatever was left in the jar was theirs.