The De-Light feature is optional on wood blinds, and comes standard on some aluminum blinds. Blackout shades are excellent, too. We highly suggest blinds with spring-tempered aluminum that resist kinking better than all others. Some miniblinds have clutch systems on their tilting mechanisms preventing over-tightening. There are some blinds which have DustShield, to repel dust from collecting on your blinds.
Some shades are easier to clean than others.
Also see our related article on How to Clean.