man your kids get an allowance for doing chores and or nothing (pre-chore time)?  wow!  wish i lived in your house.  i never received an allowance simply because my parents couldn't afford it.  I was expected to clean my room and make my bed every day.  And Sunday's are cleaning day.  Me and my sister had to help clean the house and we usually got stuck with the bathroom ( i still have cleaning the bathroom  LOL).  Every night after dinner one of us would have to wash and the other clear the table and dry.   During the summer months Fridays were straightening up days so while my parents were at work me and my sister had to clean the bathroom, dust and windex, and vacumm.  How we split the chores were up to us and me being the younger sister usually got stuck with dusting, windexing and cleaning the shower and scrubbing the shower doors with fantastic w/ bleach until they shown, and if they didn't when my mom got home i had to clean them again.
 
Tell those kids of yours they are lucky to have what they have.   I didn't have computers/phones/video games (until the first nintendo system came out) to be taken away so i just got grounded in my room if i didn't go what i was asked (which was quite alot 

). 
good luck!!!