Mix both upholstered pieces and casegoods for texture and color combinations that will be pleasing to the eye. When displaying large collections, a nesting technique us usually best. Cluster many similar pieces together in uneven numbers, in one location for visual impact. A collection spread throughout a house takes away from their appeal. Wallpapering one wall is a cost effective way to introduce pattern or color on a larger scale without investing a lot of money yet creating a big impact.
Secretary desks make wonderful focal points especially when placed diagonally in a corner.
They also add a usable extra seat for guests. Group books vertically and horizontally amongst accessories along with trailing plants for visual interest. Candles look best when burned down a little bit. Keep them straight by letting the wax from initial burning drip in candlesticks. Screens, wallhangings, area rugs and occasional tables can substitute as a distraction for hiding architectural flaws.