My older kids get $1 for each year of their age (DS1 - 17=$17) and they get that for going to school, being well behaved (no teen tantrums!) and for washing or wiping up after dinner each night. If they do extra, they get extra and we come to an agreement on the amounts. We bought them both mobile phones which we control which means they are to be given to us every night at 9pm, or else they would be smsing or on facebook until 2am. They buy their credit out of their own earnings but if they have been extra helpful, get an award at school etc, we will buy them $30 or so of credit.

We buy all their clothes for them and they are encouraged to try to sell off their old clothes for extra money via ebay or facebook so that they can buy the extra little things they want - such as better brand name clothes etc. Most of the time they are just happy to donate their old clothes though.