#8 He or She will probably leave you.
How fathomless is your love? You say wood chairs she says plastic. You say the menu needs Green Goddess dressing she says vinaigrette. You say it needs more salt she says it needs less. Simple disagreements that all pile up to “Honey come to bed.” and she says “Honey, not tonight “.
Does your wife or husband like your idea? Have they promised to stand behind you every step of the way? Are they encouraging you to do this? Make sure they are with you, committed to the point that they will quit their real job, ignore the children and mortgage the house. Other wise when things get bad and they will, your spouse will certainly choose to make you sleep on the couch.
But on the bright side when you are both too tired for the bedroom you can at least eat out at your own place for free, if you can agree on which table to sit at.