Cathy Leonard Series by Catherine Woolley

When Cathy's family moves to a house from a cramped apartment, she is thrilled at the idea of having her own room. But when family finances are threatened, she must swallow her disappointment and give up her room to share with sister Chris.

Chris just adores her older sister, Cathy, but she also wishes she could have something special happen just for herself. This is the story of something really nice that did happen to her, and her realization that she is an individual and can have a life of her own.