Use your custom icon in the Dock

Maybe you've added a distinctive icon to a folder, but when dragged into the Dock all you see is the plain folder icon? Or sometimes, oddly, the icon for an item inside the folder? To see your nice new icon in the Dock, make an alias to the folder and add a custom icon to the alias. Then drag the alias into the dock, and there's your attractive special icon. Click on it and it takes you to the contents of the folder.