Spotlight Searching in Finder

One of the neatest features in Spotlight is the capability to create "smart folders," which are virtual file folders based on a search query. This will make it extremely easy to find what you are looking for, and turns the three-decade old concept of hierarchical file folders on its head. No longer will you have to worry what was put where - smart folders do all the work for you.

Album: Mac OS X Through a Switcher's Eyes