Out of Pages offers subscriptions to notebooks for people who love thinking on paper.
If you are the type of person that fills up your notebooks with a certain regularity, this service might be just the thing you need. Sign up for automatic delivery by mail of either Moleskine or Field Notes notebooks on the schedule of your choosing (for instance, every 3 months). If you finish one up before your next schedule delivery they include a postcard you can send them to get it sooner. It’s a neat idea. I only wish more notebook brands/types were available.