Don't buy new furniture. Just pare down what you have and declutter. You may want to borrow a few things from a relative or a close friend if it will help make a space feel "finished." In bedrooms, all you need is a nicely dressed bed, a side table and a lamp. If your decor is dated or tired, you may want to purchase new bedding, a few updated lamps and fresh throw pillows — but make sure they are things you'd like to take with you to your new home.