I prefer to call it my "nerd cave" or "nerd lair." "Man cave" sounds like a gay bar from the '70s. ("Mantuary" is a little better, but also kind of creepy. It makes me picture a bunch of dudes in monk robes sitting around and watching a Packers game.)

The trick to sharing a home with your guy is to give him free reign of the home entertainment area. Let him set up the PlayStation, Blu-Ray player, Apple TV, etc. however he wishes. Then give him an area for all his stuff. The rest of the home you can basically do whatever you want with.

While a guy might not need an entire "cave," per se, he probably wants some personal space where he can unwind and house his DVDs, video games, action figures, that Pulp Fiction poster he's had since college, athletic trophies, etc. (Well, there probably wouldn't be any athletic trophies in a "nerd cave.") Perhaps a "man alcove" or a "man corner." (That sounds weird, but you know what I mean.) Sure, we wouldn't mind having an entire room in which to store our nerdy treasures, but most of us are willing to share. Whenever I visit my married friends, I always enjoy seeing their tastes co-mingling. The complete Mystery Science Theater next to Sex & the City Season Four on the DVD shelf. Pride & Prejudice & Zombies next to Pride & Prejudice. They have space for themselves, and space for each other. Less a "man cave" and more of a "couples cabana."