Televisions and toilets. Now, this is a gross generalization of course. It would be unfair to say that TVs and toilets are the only things that men worry about. I've had a handful of men who were also concerned with the kitchen design, although in most cases they were men who didn't actually use the kitchen. The wife of one swore that he wouldn't even be able to identify a kitchen if he stumbled into one by accident.
Some men worry about telephones, too.
They want to make sure that there is a telephone within reach at all times. And I mean ALL times. Let's place it here. Other than that, the only time I've seen women become passionate about telephones is when arguing vehemently with a mate that under NO circumstances will they consent to have one placed next to the toilet. A couple of male clients have not only wanted telephones installed there, but fax machines as well.