Robertochi

Use warm flooring in the bedroom. A cold floor can be a nasty shock first thing in the morning.
Be sure to use something like carpet or wood flooring in the bedroom. Avoid ceramic, marble, or any other cool surfaces.

Make creative use of pillows and rugs. These are inexpensive and can change the attitude of a room very quickly.
Play with different textures, colors, and prints to see what suits you best.

Try to develop a theme on each and every floor of the house.

After you develop this theme, try to match the colors and furniture to the type of theme that you choose.

If possible, you may want to cinder integrating your house with your hard.