My wife doesn't mind all my bikes in the house, it's me who can't stand it. I hate looking at my bike in my living space. We do have bike storage in the building but it isn't safe for all my bikes. Her bike and my winter bike go into a communal bike locker and my two other bikes which use to be in the bedroom or balcony depending on the season are in my personal locker in the basement. Not the safest but I really don't like bikes in a house.
Getting my bike out is always a chore and this is one of the reasons I purchased Bromptons for her and I. Though they haven't arrived yet they will stay in our unit tucked away.
To the OP when I did bring in my wet bike in I used an old thick blanket to absorb all the crap that dripped from the bike. Which is probably what I will do when the Bromptons get wet.