Bookstores are a dying breed; it's hard to make a living when you are competing with Amazon and the e-reader. But for many, they are like a second home. Here is an interesting retirement idea: build a bookstore into your home. In Izu, home of many hot springs and a popular weekend getaway from Tokyo (and an amazing train where all the seats face sideways to catch panoramic views of the coast), a retired couple did exactly that. Yoshiharu Tsukamoto and Momoyo Kaijima of Atelier Bow-Wow built "a house with a bookshop and a cafe where their neighbors and visitors can stop by. - See more at: https://www.japlusu.com/news/video-izu-book-cafe#sthash.GjaRHYDK.dpuf"
As a retirement project and a labor of love, a bookstore might actually have a chance.