Textures add an interest that only correctly exposed photographs can show. If you're over or underexposed, the texture of your subject is lost, so for this tip, bracketing is key.
Treat your house as though you were looking at it through a magnifying glass, and start taking note of the textures of everyday surfaces and objects like wood, walls, table tops, brushes, books, etc. You'll be sure to find something in your own home that exhibits a rather unique texture. Once you find your object, photograph it using a macro lens from all different angles. You will be surprised by your abstract results, and you'll start looking at everything through your eye's texture magnifying glass.