I really wouldn't mind all that much, it might even encourage some good habits. I'd probably start telephoning people more, or shock of shocks actually visiting them to say hello face-to-face! For longer distances, assuming the postal system survives, letters to friends and family would continue working well.
For work, I'd probably have to change job (I'm a software developer for a company writing internet filtering software…) and the logical choice, without hesitation, would be to go back to archaeology. No need to be online with that!
P.S. Why only two years, indefinitely would suit me just fine. :eye: