I am a bit of a gamer, and so when new video games that I am interested in come out I like to rush out and get them as soon as possible. When I posted Wife Rule #29, there was a new game coming out for Xbox360. Now my wife and I did not have a ton of money at the time and I knew that I couldn't just rush out and buy the game without hearing about how there are better things that I could be spending money on.
So I got her a game as well.
Now it doubled my cost, but I skipped being in trouble and made my wife happy.