Built-In Solution - If your bathroom lacks floor space for a large vanity or bank of cabinets, fill an empty wall with a storage-packed built-in. These cabinets are only the depth of a roll of toilet paper; re-creating the look could be a project for a dedicated do-it-yourselfer. The ribbed-glass inserts prevent the unit from looking heavy in the small space.
I love any kind of modular shelving, and this one would be great in a loft space. I would likely swap out the lacquered shelves for some raw, reclaimed barn board just to give it more texture, and maybe paint out the pipes to contrast against a bright pop of color on the mounting wall. It would be awesome. Please someone let me come build this in your home. I so want to put this bad boy together!