When it's your money, you can buy whatever you want.

Tom and I let the kids spend their money pretty much on whatever they want. It is usually on a toy or on DSi points so they can download a game or two. Well the princess managed to sell her brother on some Girl Scout cookies.

She showed him her cookie sheet and talked with him about what she wanted to earn for her prize. Prince asked her to give him "the speech" she rehearsed for going door to door. She did... and he bought three boxes.

Like a good salesperson, no stone left unturned. And like a good brother, he realized how important it was to his sister and supported her.