Storage, Astonishing Custom Wooden Bookshelves Inside Stairs In Mahogany Design Ideas Custom Bookcase Stairs Design Wooden Stairs Without Handle In Modern Living Room Interior ~ Compact Under Stair Storage Ikea to Utilize Under Stair Space
For even more storage, consider hanging shelves up high that run the length of the room. You won't loose any floor real estate at all, and you'll gain a lot of storage space. Design Dozen: 12 Clever Space-Saving Solutions for Small Bedrooms
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.