The Small House Catalog: toilet/sink combo, a space saver and if you didn't want to use it there's always the kitchen sink a few steps away; could be used in a skoolie, bus conversion, or trailer to save space and recycle sink water into the toilet…
galvanized bathroom - perhaps a good outdoor shower idea. I think kids would love this as a circle bath tub/shower(cause lets be honest they want to take baths, but more often than not, need to shower off first:)
Many times the attic room is overlooked when you run out of room in your home and need more storage space. Creating well-planned attic storage will help you reduce clutter. The attic storage space depends on a home's style and when it was built.
This is a perfect combo of my two favorite ideas for that space under the stairs leading to the basement. A reading nook AND book storage and shelves . assuming that there is enough space for this there.