who is the big spoon/little spoon
Sameth/Kait but I think they're not that way all the time.

what is their favorite non-sexual activity
Working on something together, her giving advice on one of his projects, him listening to her research.

who uses all the hot water in the morning
Kait, she likes being warm.

what they order from take out
Barbeque.

what is the most trivial thing they fight over
Hee, this is tricky for them. I think one answer is who gets to be in charge in terms of sex but Kait always wins that one. The other is who's working too hard.

who does most of the cleaning
Sam as it's usually odd things from his projects that are cluttering things up.

what has a season pass in their DVR
Documentaries about history and engineering and mythbusters.

who controls the netflix queue
Kait

who calls up the super/landlord when the heat’s not working
Kait because she's good at making the landlord listen though quite often Sam will go and fix it himself.

who steals the blankets
Kait, she doesn't like cold.

who leaves their stuff around
Sam again because he tends to work wherever he is.

who remembers to buy the milk
I think Kait but they both tend to forget it, other things are more important.

who remembers anniversaries
They both do as they can be incredibly sappy.