In questions [like this one](https://superuser.com/questions/383560/how-to-restore-emacs-windows-and-buffers-from-the-last-session) about using the Emacs Desktop options to arrange for a saved session to be re-loaded upon startup, it is explained how to reload buffers automatically on startup.

But what if you want to launch Emacs without re-loading any previous buffers and then after some time and after opening a few new buffers you *then* want to re-load all of the buffers from some previously save desktop session.

I expected there to be some command like `M-x desktop-load` or something, but after a lot of Googling around the Emacs Desktop stuff I can't seem to find out how to do this.