What do we have to remember about in order to care about the interior design at our house effectively?

What do we have to remember about in order to care about the interior design at our house effectively?
Many people, who regret their moves in the topic of furniture systematically tend to say that they have made them in the atmosphere of considerable hurry. Hence, they regularly tend to think later that in above mentioned it is much better to begin cooperation with another professionalist or at least ask someone like our friend or relative to help us make better choice.