It only needs your creativity, an eye for good color combinations and just a fraction of know-how in interior design.
You could try hanging and storing clothes in a curtained corner, instead of on stick-on hooks on your walls or behind the doors. You could put on bright and fresh shades on your doors and windows and take down the heavy drapes and curtains. De-clutter your table tops and substitute with a proportional vase on living room tables. Dispose of your large and chunky sofa, throw in a soft comfortable rug with some cushions in bright colors on your floor. Guests would definitely be floored by your home interior scheme.
This outcome doesn't come in a snap, though. It needs more than a little planning, or else your home interior design will come out a hodgepodge of colors and stuff. For example, a new available corner could be enough space for your TV then you find out that the whole window light is reflected from the TV screen.
When you set up your furniture, you must be conscious of natural light - it should be allowed to come in freely, inside the rooms, at writing areas and TV or computer monitors not reflect light from overhead or on the opposite side, like a window or door opening towards the sky. Windows and doors must have enough space to be fully opened.
One principle in home interior design is for walls and ceilings to be in pastel shades. These reflect light and will brighten your house more. Paint your doors and windows in similar colors or shades to your walls to create a breezy fresh ambience.
Curtains add in mood creation of a room. Lacy curtains generate daintiness, brightly colored curtains invigorate an otherwise dull room; dark and heavy curtains give a peaceful and restful environment. There are various color schemes for bedroom, living room and kitchen interior designs for you to choose from.
You can also mix and match the colors of the furniture in the rooms of your house to reflect your individuality in your home design. Wooden cane furniture appears light but is actually strong and easily portable. Heavy cushioned furniture denotes luxury and repose.
Identify your personality and direct your taste to your home interiors. It is, after all, your own home, your haven and refuge.