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Change Yarn or
Changing Colors

Cluster (not done yet)

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Starting A New Color (Also changing the yarn)

This is not a difficult task.
Many magazines and books tell you do it one way.
I am going to give you an easier way to change colors.

First, finish the last stitch of your first color (FC).
Make your loop on the needle a little larger, so you can work with it.

Next, take your new yarn or new color (SC) and thread it through the loop. 

Now, like you are starting to tie your shoelaces, knot the SC to the loop of the FC.

Next, you put your needle back into the loop.
YO and draw through with the SC.
(You should have a loop of the SC on your needle now.)

Here's the really tricky part. Take the end of the FC Yarn and pull tight. 
(Try not to break the yarn.)

Ok, Now take the end of the FC and SC and knot them together.

You should still have the new color on your needle and can begin working again.

I find this method hides the changing of colors the best.  You might discover a better way.  Let me know!!