I don't usually read this board so humor me if this is common knowledge. I was thinking about how often suitcases seem to not keep up with passengers and thought this might be a bright idea.
If you pack a his and hers suitcase, do you packing then take half your stuff out of your bag and put it in your partners. That way if one bag gets lost you haven't lost all your stuff. Ladies, this in not permission to invade your husband's packing space - but you've probably done that already