Nevermore

• Who shops for groceries?

     I believe that Sakura is the one to do that. She would be the loving wife that would dearly take care of the one she loves. 

• Who kills the spiders?

     They both do, since they are both shinobi and have faced things much worse than spiders.

• Who comes home drunk at 3 am?

     I think that it would be that kind of situation where they would pick a day and go out and get completely wasted.

• Who makes breakfast?

     Mostly, Sakura, but on special occasions, Sasuke would wake up especially early to cook her something.

• Who remembers to feed the fish?

     Sakura does, as she is quite attentive to the details.

• Who decorates the apartment?

     They both do, Sakura brings her happiness and joy in the place while Sasuke makes it comfortable, quiet and intimate.

• Who initiates duets?

     Sakura. Sasuke is not quire fond of karaoke to being with anyway, but if that would make her happy, then he would oblige.

• Who falls asleep first?

     After one of those “long nights”, Sakura would definitely be the first one to pass out–during normal evenings, they would both fall asleep around the same time.