Oh on your punish but reward system, I know it works, I have a similar one in effect now.
The boys would constantly fight over time on the computer by me (no computer at (x)W's). So, to curb the fighting, the open availability to the computer was cut off as well as the ability of what they can and can not do on the computer by way of creating a time and access restricted account.
So, if they want to use the computer outside of the prescribed time frame, they'd have to go through me and the master log in. If they've been acting up, they know the answer would be 'why should I let you use it when you've been acting this way?'. And let the moaning and butt-kissing begin.
Me 35/XW 33 S13 & S12 M: 10/17/98 OM & S: 07/08 D final 06/09/09 12/03/09 - 06/13/10 "Piercing" 06/13/10: Engaged to Re-marry 10/17/10 06/25/10: Expecting baby #3 2/14/11