S hooks are a low-tech, versatile storage solution that can be used with shelving, ceiling hooks, storage rails—even a simple tree branch (see the Ferm Living idea).
Above: Photo by Marcus Svensson, via Sofie Andersson.
Above: Photo via Modern Country.
Above: A European kitchen via OWI.
Above: Photo from Ferm Living.
Above: Ikea Grundtal Hooks; $2.99 for a pack of five.