The is a recently launched, all‑in‑one personal‑care bundle that combines 12 distinct hygiene and grooming items into a single, reusable, modular package. While the concept promises convenience, cost savings, and reduced environmental impact, empirical evidence of its performance in real‑world settings remains limited. This study provides a triangulated assessment of the MegaPack across three dimensions: (1) User Experience (UX) – measured through a 6‑week longitudinal field trial (N = 180 participants); (2) Economic Value – analyzed via cost‑benefit modelling against conventional single‑item purchases; and (3) Sustainability Footprint – quantified using Life‑Cycle Assessment (LCA) methodology (ISO 14040/44). Results reveal that users report a 23 % increase in perceived convenience and a 19 % reduction in overall spending after six weeks. The LCA demonstrates a 38 % decrease in greenhouse‑gas emissions and a 45 % reduction in plastic waste relative to a baseline of individually packaged products. However, the study also uncovers design‑related friction points (e.g., module inter‑compatibility) that moderate adoption rates. The paper concludes with design recommendations, market‑entry strategies, and a roadmap for scaling the MegaPack concept toward a circular‑economy framework.