File info without Command-I!
It is possible to get some info about the files everywhere in the Finder without checking out "More info" with Command-I. The option is called "Show item info" and it is located in the "Show View Options" window. You can bring up "Show View Options" with "Command-J". When it is enabled, some info about the files and folders will be displayed just under the name, under the icon. In the case of a folder, it will display the quantity of files inside the folder. As for a picture, it will display the resolution so you can get an idea of the quality of the image. If it's a music file, you'll get the length of the song. There is no additional info displayed for text files and pdf.