Now, I thought this was really nifty idea for knitted or crochet gifts.
Make Care Tags
She saves "the care instructions taken from the wrapper on your skein of yarn, and a nice supply of yarn in the colors" from the project.
She takes a piece of nice cardstock, glues the care instructions on it, and places some of the scrap yarn on the cardstock. She suggests adding an extra button if the knitted gift has buttons.
Now, for the most part, most people (unless they are a knitter or crocheter) will not be using the scrap yarn at all. But, for a knitter/crocheter? That scrap of yarn is a nice little extra thoughtful touch that allows them to mend injuries without trying to match yarn.