Holy cow. I think I'd take the opportunity to "do nothing" as asked to. Relax, you'll be back at the grind before you know it.
Is it that bad to have a span of time without actually doing, or planning to do something? On second thought....this is most likely blasphemous in the GTD world and I'm about to barred from the forum
Just to add something that at least looks valuable to the string, I find myself brainstorming to-do's, or NA's for another project. With any luck I manage to have a 3x5 card so I can sneak some notes for later processing.