Like hooks for stuff here's an idea for shelving with character: box frames.
decordemon: Pastel shades and classic charm
Small Space Solutions: 7 Spots to Add a Little Extra Storagecorner shelves in bathroom and add smaller med chest to give room
Proman Bath Floor Cabinet - Space Savers at Hayneedle
Hidden Fridge Gap Slide-Out Pantry . I would make this taller. If you're worried about heat, you could make it into a lid rack! I hate the fridge magnets though
A rod under the sink to hang cleaning products from Lifehack 20 Clever DIY Storage Solutions
exposed brick + neutral colors // 55 m² apartment in Barcelona