Lighting is also something to bear in mind when designing your room. The lighting can be from fluorescent bulbs or you can have enough windows to allow more light.
Decorative accessories are another important piece in pulling your contemporary look together. Concentrate on getting wall art and pillows that match your contemporary design style. For accent pieces you want the lines to be clean and avoid a lot of clutter. Be certain to add in loads of plain bowls with fruit as well as simple linear floral arrangements and you might even try some black and white photography to get a professional look for your living room. Additional touches such as vintage art deco accessories can help setup your room with a polished decorative appeal but don't go overboard because with the contemporary look less is better.
Firstly you will save a great deal of time - and even money - trying to source items that you think will go well together. Secondly you will be guaranteed a finished look that is both stylish and coordinated; in other words there is no chance that your 'mixing and matching' will go wrong.