Is it just me, or does this title reek of disdain for his wife and/or all women?
To spell it out: the "let's go shopping" meme indicates stupidity on the part of women. Here he's using it seriously to complain about his wife having "difficulty" with simplicity. This in turn implies that women in general have this difficulty, and this is a negative trait of the sex at large.
Maybe I'm being a little sensitive here, but I kind of want to smack this guy.