How to Add Grain in the Gimp

I have long wanted to learn how to retouch photos I've taken. One of the reasons I pay for Smugmug is that it won't mess with my creations. So, I took Terry's photos, adjusted its saturation, before finally adding grain. Here's how I did it:

• To allow for easy redo, you should start off by duplicating the layer, under the layers menu or by hitting CMD-SHFT-D. This will result in a new layer entitled "[filename] copy" with an identical thumbnail to the [filename] layer.
• Under the Colours menu, choose "Saturation".
• This will popup a dialog with options, check the "Split View" and adjust the line to the main part of the image to see how it will look.
• Set the saturation to 0. You'll have to tab away to see your results in the image.
• Save this setting for later use if you're happy with it.
• Now the image should look like the second one linked -- all colour removed. Have a cup of coffee
• Back now? Good... We will now add grain to the image. Under the "Filters" menu, choose "Noise" and "RGB Noise".
• Unclick "Independent RGB" and adjust the value to suit, watching the preview after tabbing away from the field.
• When you're done, you should have something looking like my third linked image.