All winter, I wore a clip-in weave just to add highlights and change up the length when I wanted.
I make my own clip in hair pieces and this is how I do it. From your local beauty supply store, purchase the hair that's attached to a weft. As if you were going to sew a weave onto your hair, measure each weft for each part. Take the wigs clips and sew one on each end, and then by your own judgement sew additional pieces in the middle for security. Voila.....clip in hair pieces.
I love them because you can take them out when you get home, condition and treat your hair, they minimal stress on my hair and you can try different colors for the highlighted effect.
Good Luck.