What I do is pick a theme for each room or build a theme around one antique piece in the room. My bedroom and livingroom have Chinese antiques, Victorian in the dining room, Victorian with bold black/white/red in the bathroom, and in the kitchen, it's all cobalt blue w/white, with rustic "kitcheny things" that match the Hoosier. Each them ends at the doorway and I don't mix items from one room with another. That way I get to endulge in a lot of different things I like and each room has a different feel to it.