Use heirlooms effectively by grouping them with ornaments in a unified color scheme, like a single satin ribbon shade, to create cohesion. Display sentimental pieces such as old angels or handmade crafts prominently on the tree or mantel. Combine heirlooms with modern jewel tones and fresh greenery for balance. This approach honors memories while making heirlooms feel fresh and integrated into a maximalist, inviting holiday decor that tells your personal story beautifully.