You may find just what you are looking for at your local retail outlet. Often the dedicated blind stores have decorators to help you measure and decide what will most enhance your space. If you feel confident in your choice as well as your measuring ability, go online and see if you can find a better price from a wholesale outlet.
Blinds are a great solution to privacy and lighting issues. They can also help with insulation and provide an aesthetic touch to your room. Some blinds work better with different windows and styles.
Remember, blinds typically have long cords that could be a hazard to little ones. Please remember to hand the cords high and out of the way of children.