All done, and it took me about five minutes, even with a new child to list since the last time around. Despite an incredible temptation to spell my surname six different ways as a gesture of solidarity with my ancestors, I kept all spellings standard.
I also used a great tip from the Genealogical And Historical Research discussion group on LinkedIn:
Make a photocopy of your completed census form and file it with your genealogy stuff. No sense making your descendants wait 72 years to see what your answers were if they don’t have to!
I can’t believe I never thought of that! Am I the last person to start doing this?