Things I have learned in the last 8 hours..

1. Making a couple of affectionate comments about husband's snoring/heavy breathing/whistling/grunting instead of expressing irritation at not being able to get to sleep, will be met with the same level of umbrage. Better to head for the spare bed in silence.
2. Not ironing daughter's work trousers inside out, unknowingly risking a 'shiny arse', in an effort to save her some time on the morning, will not be construed as being helpful.