1. ScaleIf you live in a Queen Anne railroad-style home, overstuffed furniture will seriously cramp the room. Go for delicate pieces with a slim profile instead.
Give the space the same adjectives you would give a person, i.e.: tall and skinny, short and curvy, wide and chunky and so on. Then pick pieces that match the room based on those adjectives. Be careful when you shop in a large store, because the pieces look dwarfed. The furniture is larger than it appears.