You can change the entire interior design of your home without making a hole in your pocket. You can use some inexpensive interior design ideas such as painting your floors. This will not only improve the surface of the floor but will also make it appear beautiful.
Another idea is to create a wall art of your own. You can use wallpaper borders, stencil patterns, chalkboards or maps for the purpose. You can do away with the curtains. Also remove the window coverings. This will add natural beauty to your room.