Sometimes you find elegant design in the places you least expect it.
We stayed in the Dan Carmel in Haifa, and the small supplies in the bathroom came in color-coordinated little boxes: shower cap, cotton pads, the usual stuff. Still, they failed to go all the way: they had tall bottles for the shampoo and a round box for the shoeshine sponge:
Which reminded me of a much better attempt at such standardized packaging that I saw in the Hotel Silken in Zaragoza, Spain:
They had ALL the supplies fit in square packages, made of either cardboard or plastic, and these all fit like a puzzle into a rectangular cardboard tray. Even the shampoo bottles were square and fit the scheme perfectly. It was a delightful design, injecting elegance into this utterly mundane collection of supplies, so I share it here.
These guys had such a thing going for the rectangular form factor, that even the sunny-side-up eggs they served for breakfast were square!