Weave in ends. Sew front and back together, inserting pillow form before closing the 4th side.
TIP: Side edges of color stranded fabric are often messy. Sew these seams taking up a whole stitch from each side.
TIP: Untwist yarn strands every once in a while to reduce tangling.
TIP: Slightly stretching the stitches on the right needle before knitting with the next color to be used will help keep color stranded fabric from puckering.