A watch that lets you know when your wife is fertile. Anything to make NFP easier is appreciated. Lots of guys say it's easy. I say (i) they're delusional, or (ii) they've been married fewer than six years. It's amazing how many people wax eloquent about NFP at first, then go into shock after their wife unexpectedly gets pregnant for the third or fourth time. Cracks me up. I, too, went into shock after my wife got pregnant for the third time in four years, but I never thought NFP was beautiful or artistic or anything like that. I thought it was hard, and I didn't think it'd work well. I was right on both counts. I'm going to be a poor man all my life, but hey, I was right!
Via Boing Boing.