Paint your old cabinets and walls.
Price range: $10 - $30
A fresh coat of paint goes a long way. Do your worn cabinet doors and discolored walls a favor, and get your Picasso on. Applying a crisp layer of paint onto old furniture and walls can give a drab interior space the pizzazz it needs, changing the entire atmosphere from dull to dapper. If you're running low on cash or feeling lazy, you can also just paint an accent wall for a pop of color.