Having trouble picking a paint color or deciding what type of blinds to get for your windows? Give these free mobile apps a try: the ColorSmart app (iphone and Android) from Behr has lots of features, including the ability to preview paint colors in sample rooms, calculate how much paint you’ll need and match colors from pictures you’ve taken. With the Window Shopper app (iphone), you can take a picture of your windows and the app will virtually “install” different types of blinds so you can see how they will look in the room. Have fun experimenting!