To style a small entryway using the rule of three, choose three functional or decorative items that provide balance without clutter. For instance, a trio could include a bench, a vase with branches, and a wall mirror arranged thoughtfully to create visual rhythm. Stagger their sizes and heights to add depth while keeping the area open and inviting. This approach ensures your entry feels intentional yet airy, welcoming guests with both function and style quickly and effortlessly.