I recently resurrected my leather Time Design zippered planner. Just punched new holes and use the Jr Coordinator calendar refill in it. It's really stood the test of time, and still nice looking after a little leather conditioner. I like the zipper, so things don't fall out. D-rings might be a nice update. I'll look forward to seeing a new GTD planner in 2014.................Thanks John, for the heads up.