Nice Leopard Finder/Spaces tip

From Macworld

Put the Finder in all Spaces: While Spaces is a very cool feature, one thing that can get annoying is how the Finder behaves: certain Finder-related events in certain programs may shift your active space to one showing a Finder window. You can avoid this problem by assigning the Finder to every space. In Spaces’ System Preferences panel, click the plus sign to add a new assignment. When the file browser shows up, navigate to /System -> Library -> CoreServices, click on Finder, then click the Add button. Back in the Assignments window, click the Space column next to Finder, and set it to All Spaces. Now you’ll see Finder windows in all of your spaces.