The choice of shades and blinds will depend mainly on your windows - where they are, the light they let in and the views through them. Then, of course there is the matter of personal taste that governs your choice.
Here are a few suggestions to get you started.
Your Home
If your house has a symmetrical façade, you may want to choose the same coverings for all your windows. On the other hand, if you lean toward layered, romantic spaces, you might consider sheer and soft shadings in muted tones. Also, 2-inch wood blinds may be a perfect answer if your house has strong architectural features.
Light
If you prefer a well-lighted room but hesitate in leaving the windows bare then consider going in for the sheer shades that are perfect for the minimum look. You can opt for complete blackout shades for a complete dark bedroom. Solar shades might be the answer if you have furnishings that might fade.
View
For that picture perfect that looks outside your window, consider a shade that disappears into a header when open. Otherwise you can opt for open weaves for your windows.
Privacy
If your home is in an urban area or a busy street, or close enough for the people to peep in, then you can opt for shade with a bottom-up feature. These shades will not only protect your privacy, but will also let in the light.
Use
This mainly focuses on who actually uses the room. If the room serves as a studio or a craft room, a lot of natural light may be required or else it might be a room for your children. You can consider something washable or remote-controlled.
Energy Efficiency
If energy efficiency is an issue, then window coverings like cellular shades can answer your expectations. Then there are the solar shades that block UV rays and prevent rooms from turning ovens in summer. You also have the option of matchstick blinds that can help regulate room temperature.
Whatever your window covering challenges, shades or blinds may be the answer. Simple and attractive, they come in so many variations that there's bound to be one that will work for you.