Recycled jeans notebook or planner. Use a regular notebook, and cut up them jeans that the kids have outgrown. Also a good idea: using a larger notebook and a patch/screenprint from an old favorite shirt.
DIY rug from old jeans - I wear denims everyday, it’s like my uniform. As everything, after a while they become old and have holes. As I hate to throw away…even old clothes, I try to find ways to upcycle things.