Bathroom Organization and Storage Solutions

Design a bathroom organization system for a [master/guest/shared family/half] bathroom measuring [dimensions]. Users: [number and ages]. Storage available: [vanity/medicine cabinet/linen closet/minimal]. Products to organize: [toiletries/medications/cleaning supplies/linens/hair tools]. Challenges: [limited space/multiple users/humidity/rental restrictions]. Budget: [level]. Include: zone assignments, storage product recommendations, countertop minimization strategy, under-sink optimization, humidity-resistant solutions, and daily routine flow considerations.