Using tiling as a back splash is an inexpensive way to create interest. And while bright colors might be right up your alley, the tiling does not have to be strong, primary colors to add beauty to a kitchen.
Another space that might benefit from tile as a decorative solution is the fireplace. often times fireplaces are already constructed using tile or stone. Just because the fireplace was built using stone or tile does not mean that you cannot add some color or texture to breath some life into the room.
So whether you are in the market for a kitchen update or getting ideas for a fireplace hearth, tiles can be an inexpensive and lean option.