Finishing the Crochet : Yarn Ends
Working with a single yarn
Leave yarn end of at least 6-8 inches in length, when finishing the crochet project.
Using a tapestry weave the end through the back of the stitches for at least 1 1/2 inches, and then turn and weave in the opposite direction. Pull the end gently to allow the yarn to ease back into the stitches.
Working with multiple colors
Weave yarn ends through the same color stitches to keep them invisible.
If weaving ends into a very open, lacy design that doesn't offer much in the way of solid fabric to work through, weave the ends through the tops of the stitches.
Working with two or more strands held together
Weave them in separately, and in different directions, to avoid unsightly lumps and bumps in the crochet. This also makes them more secure.