Here's an interesting tip from a natural friend of mine. He does NOT own a couch. His family keeps trying to buy him a sofa; he declines. When he brings girls home, he doesn't want them to sit anywhere comfortably EXCEPT on his bed.
You didn't hear this from me.
But this interferes with the C3-S1 logistic of moving from the living room to the bedroom for example. Do what you want.