One thing that never fails to amaze me, is how much of a difference curtains can make to the look and feel of a particular room. If you have a beautiful modern room with a pair of worn or dated curtains, the contemporary style can soon diminish.
Curtains have to be chosen carefully, and even though their main use is to shut out light, they can really pull a room together. You should always consider the colour of your carpet and walls before you decide on the right type of curtains. For a country cottage style, you may want to consider a tartan design, while floral curtains are perfect for a 50s or 60s theme.
For those who want to decide on one colour for a room and run with it, you may want a plain matching curtain. That said, they can also be used to bring a new colour into the room, but this should be done carefully, and you will need to make sure you don’t have too many colours going on if you want this to work.