Place Mostly Frequently Used Folders in OS X Dock

As with most people, there are a few folders on my Mac that I use all the time.  To save myself a few clicks, I used to leave the folders on my desktop.  After awhile, chaos would ensue and my desktop would be need of  a spring cleaning.  Now, I have re-located my most used folders to my dock.  It's really easy!  All you need to do is drag your folder to the dock.  Once there, you can adjust to display as a Folder or a Stack with the content in a Grid or List.  You basically have the same controls as with the Downloads folder already on your dock.