Party! : the complicated life of Claudia Cristina Cortez

Claudia is tired of being left out of popular princess Anna's parties, so she decides to throw one of her own. The problem is, parties are expensive. To foot the bill, Claudia takes on extra jobs. But between school, babysitting, dogwalking, and running errands, she doesn't have much time left for her friends. What good is a party when there's no one to invite? "Claudia is throwing a party, but she has to save money to pay for it. She's spending all of her time working, and neglecting her friends. What good is a party with no one to invite to it?"--Unedited summary from book