Just to wake this up a bit, I have an Archive stack with notebooks within it which are not in general use but I need access to them from time to time. This works well for me. But I also have other stacks for other purposes, and now I want to archive a stack. In other words, I want to archive the notebooks within the stack (move them into Archive, right?) but I want to keep their relationship with one another, so keep them in their stack. But you can't stack within stacks. Fredhammersmith, at 25k+ notes, I am not in your league, but I feel your pain.