I use a reward system for both Joel and Ethaniel. When they are well-behaved, has good attitude, finish their studies and etc. which deserves reward, I will give them beans. When they are able to fill the bottle to the required level, they are rewarded with B500 (RM50).
Ethaniel is the first to fill his bottle and he was rewarded with B500 yesterday. Yes, he finished spending it too! He treated his brother to Swensen's ice cream and purchase legos.
Counting his beanies to be put into his bottle
This is the level to claim for rewards
His B500 reward
If they behave themselves and do well, they should be able to claim their reward within 1.5 months, if not.... longer.