An unfinished basement, with its concrete floor and exposed joists, may seem dreary and cold. But in reality it is an enormous blank canvas just waiting for your inspired ideas and artistic vision. The fact is, you don't really need niceties like drywall and recessed lighting to create an inviting space. Before you begin, do what you need to do to make sure the space is dry and clean. Fix any water issues and apply waterproofing if necessary. Unfinished concrete flooring will produce fin...