When shopping for a new couch or chair, especially for us short, vertically challenged people, bring a good book. Make yourself comfortable and sit and read for 15 to 30 minutes.
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When buying furniture for a specific room, buy neutral colors. If you ever want to use the same furniture in another room, you'll not have to paint or re-upholster it. It'll go nicely as it is.
This is a page about the pros and cons of leather furniture. Each type of furniture upholstery has its positive and negative features.