Do you take off the proofing marks – the little wavy lines indicating a spelling or grammar error – when you send a Word document? No? Why not?

Do you take off the proofing marks – the little wavy lines indicating a spelling or grammar error – when you send a Word document? No? Why not?
You may well back up your important data, but you probably don’t. It’s something that you know you ought to do, but never quite get around to doing it.