Reuse an old tree to make a log pathway in your garden. Good use of "yard" trees and other wood that can't be milled; works much better in climates without termites. Good drainage under the log rounds will make the path last longer.
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.
I love banquette seating! A great breakfast nook/family dining option that just looks good in any kitchen. Especially in its own little nook with lots of light, and lift-up seats to store kitchen/dining linens.