I have two homes and it took a while to get sewing set up at both houses with duplicates but am getting there. It makes a difference how frequently you will be going between the two houses. For me we spend 7 months in one and 5 in the other with no going back and forth in between so once I leave something there it's there for a while. Another is space. I have more space in one house than the other. A third consideration for me is where fabric shops are. At my one home they are plentiful and close. Not so at the other so I have more of my stash where it is a distance to a fabric store and less stash where if I need something I can run and get it. I also tend to work on different types of projects at the different houses which dictates what things I have where. I do take some back and forth but that amount gets smaller each year. No matter what you will always have times where you will be missing something that is at the other house. That is what you have to come to grips with and hard for me at first.