who is the big spoon/little spoon: Gibbs is absolutely the big spoon. He protects his Abby.
what is their favorite non-sexual activity: Crime-solving. Duuuh.
who uses all the hot water in the morning: Gibbs is more likely to. He doesn't take long showers, but he does take very hot ones.
what they order from take out: Gibbs likes Chinese and French food. Abby doesn't care, as long as she doesn't have to cook. Except when she wants to cook.
what is the most trivial thing they fight over: Abby insists that they only fight over important things. Gibbs disagrees, but declines to share the details of their disagreements.
who does most of the cleaning: Gibbs actually likes cleaning. Abby likes watching him vacuum and pretending to crack a whip.
what has a season pass in their DVR: Neither of them really watch TV, actually. Abby uses the internet, Gibbs occasionally has background noise in his basement.
who controls the netflix queue: Tony, actually, but it hasn't been touched in months.
who calls up the super/landlord when the heat’s not working: Occasionally Abby goes behind Gibbs' back and does so. Mostly, Gibbs fixes it.
who steals the blankets: Abby does, but only to make Gibbs steal them back, which gives her an opportunity to start a tickle war.
who leaves their stuff around: Both do. Gibbs leaves tools where he's used them, and Abby tends to shed clothes and jewelry as she moves around the house. Neither complains.
who remembers to buy the milk: Gibbs, even though he doesn't drink it, because he's thoughtful like that.
who remembers anniversaries: Gibbs always does, even when Abby thinks he forgot.