Updating accessories! Of course the "cheaper" part of the subject line only holds true if you aren't spending a lot on accessories. But what is important to know here is that sometimes paint colors just don't look right in a room. People may even repaint a different shade and still not be happy with the results. The problem here is with the accessories, or lack there of.
One key element of design is to make each decision look intentional. For example, if you are going to mix a warm color with cool color it needs to look intentional. How to do that? Find a piece of artwork that has both tones in it so it looks intentional.
Then repeat it. Pick up both colors in pillows, throw blankets, vases, etc.
I believe that you can make almost any color scheme work with carefully placed design elements and accessories.
I think that a decorator's job is an important one for finishing a room. You can have the best architectural layout, best tradespeople install, and highest quality furniture purchased. But accessories and carefully chosen colors really make a room sing. It adds personality and liveliness and that 'wow' factor everyone is looking for.
If you need ideas on how to make this happen in a room of yours, I'd be honored to help!