Wise advice from Cornergran. The very first thing you have to do, is lower your standards a tad. Women are trained, whether rightly, or wrongly to notice and to do things more thoroughly, in most cases (I know, there are OCD gentlemen out there, but they do seem to be a rarity) Also, you have spent a lifetime doing these jobs, he is only just starting out. Remember your mother telling you to "insert task of choice" do that again, and do it properly!
You will probably always do the lion's share, but at least he seems willing to learn (unless of course, he is using the time tested trick of making a rubbish job of things so that you take the tasks back!) Give him tasks and let him do them, you can always go around and finish the job - don't criticise or he will give up - and slowly he should improve.
Good luck with your late in the day training sessions!!!