How can I effectively care for and maintain the health of my indoor plants on a larger scale, such as in a house with multiple plants?

To effectively care for multiple indoor plants in a larger space, ensure they receive proper light, water, and nutrients. Develop a consistent watering schedule, provide adequate sunlight or artificial light, and regularly inspect for pests or diseases. Consider grouping plants with similar care needs together and rotate them for even growth. Additionally, periodically clean leaves, repot when necessary, and prune to promote healthy growth.