While I'm still on the subject of rewriting (as I had suspected, Prospective Agent is snowed under after the Frankfurt Book Fair and has asked for a fortnight's grace before I send TB&TW off to him) I thought I'd address the issue of the far-from-paperless process as it occurs in my house.
Though I try and do as much rewriting/editing as I can onscreen, there is a completely different feel about the printed page and I know that no part of my book is properly combed-through and appraised until I've done it on the page. Consequently, I have piles and piles of A4 printouts of various bits and drafts of The Black and The White hanging about the place. As of yesterday I decided to chuck them all in the recycling bin and just keep the most recent, clean copy.
What does everybody else do with printed-out drafts?