I LOVE that idea of matching his savings if it can stay in the bank for 30 days, what a wonderful way to teach your son about money and it's value!! Hopefully I can remember that one for when my children are a bit older, I would definitely like to teach them about saving money.
I also liked what hotwheelsaust said about his sons saving money and he would give them a little bit of an unexpected boost when it came time for them to cash in their savings.
M: 8 yrs T:14 Twins:7 S:5 BD:'NLILWY': Feb/2013 Mar/Apr/May: MC June: "living in limbo" Sept 12: H moves out Oct 20: reconciling Jan-Feb 2014:MC Feb 2014: separating, and H moved out.