David Robbins: What's the key to a happy marriage? Working batteries
Agony aunts, psychologists and sex therapists have made fortunes diagnosing the ills of the modern marriage. Open marriages, celibate marriages, arranged marriages, polygamous marriages; all have been put forward as the way to lifelong happiness.
Relationship self-help books comprise the biggest growth area in publishing. It's a multi-million euro industry. But today, I am going to offer you the recipe for nuptial harmony for free. It's to do with batteries.
Now, bear with me. I have come to the conclusion, after two marriages and many nights listening to he/she-doesn't-understand-me laments from friends, that the strength of a marriage can be gauged by the state of the various domestic systems in the marital home.