So, adjust the workarea layout in some way. For example, close all the palettes you suspect to be useless and collapse all the others to icons. Suppose, now it perfectly fits your taste, habits, or a specific kind of job. Now let's save this workspace for later use.

§ 7. Pull down "Window > Save Workspace". In the "Save Workspace" dialog, enter more or less descriptive name (well, let' it be "My Space") and click "Save". Done!

§ 8. Again, re-arrange your palettes in some way or just load a preset workspace* as it is shown in the movie.

*Photoshop comes to you with a number of preset workspaces tuned to different industries and tasks. Users running Photoshop for the first time may feel some relief with the "Basic" workspace (fewer menu items). Those missing "ol' good" Photoshop interface will probably enjoy the "Legacy" (most similar to CS2 palette layout). Most presets though just color specific menu items and alter keyboard shortcuts without changing palette locations.

§ 9. From the program menu, select "Window > Workspace > My Space" to get back the saved workarea.

§ 10. Now let's restore the palettes to their default positions. From the pull down menu, select "Window > Workspace > Default Workspace" to accomplish this.

NB Whenever you get lost or confused with your customized Photoshop's interface, use the "Default Workspace" command to return to the original settings.