I don't really do the whole marriage thing. Kinda wish there was an alternative for characters living the bachelor life but whatever, apparently monogamy is the bee's knees in Skyrim.
Well.. I don't know.. I guess all of it involves a little roleplay. My Dibellan spellsword loves Senna and she doesnt have to lift a finger. Just enjoy all of her wealth in Markarth. But, as a devout Dibellan, he loves females.. and really has too many for his own good.
Lydia guards/has Breezehome all to herself.
Jordia guards/has Solitude all to herself.
Iona guards/has Honeyside all to herself.
His arch-mage quarters almost functions like a bachelor's pad, since it is his only domicile that is not claimed by one of his "women".
A heavily buffed out Ria spends many a night there after a rough adventure.
Breylana and Areona Ienith are also very close associates who spend a lot of time there.
It makes for a very good bachelor pad, even for a happily married character.