At various times, organizer manufacturers like Filofax, Day Runner, and Franklin Covey have attempted to unite the paper world with the electronic one. That has included things like a binder or portfolio that can accommodate a Palm Pilot or iPad and a paper organizer side-by-side. Or something as simple as leaves designed for listing favorite websites.
Do you keep your calendar on paper but your contacts list on your cellphone? How do you combine (or separate) your paper-based and digital information?