In "The Glass Castle," Jeannette Walls illustrates the resourcefulness of her family, especially her mother, who demonstrates an uncanny ability to thrive amidst scarcity. This reflects a broader theme of survival and resilience, as the family often lived with minimal resources but adapted to their circumstances. The phrase, "She knew how to get by on next to nothing," encapsulates this quality, showcasing not just survival but an unexpected form of creativity in the face of hardship.

This ability to navigate life with limited means reveals deeper insights into the characters' relationships and individual strengths. Jeannette’s mother embodies a carefree spirit, embracing their unconventional lifestyle and teaching her children to appreciate the little things. Ultimately, this perspective fosters a sense of independence and resourcefulness in Jeannette, shaping her identity as someone who can confront challenges head-on despite their difficult upbringing.