I love your dream, keep dreaming it! I also love the idea of quilting supplies, lots of material, adding yarn and wool, some 'homemade' purses,totes, knitted sweaters for sale. Somewhere for clients to sit and talk, cup of tea, and spend some time with friends. When I think of these kinds of stores I think "cozy". Just make it warmy and comfortable for the clients and I'm sure your dream will grow and grow.
Good luck with your dream.