2. An additional small piece of fabric that comes with new clothes
Once you buy a new piece of clothing, you will notice that there is probably a small sample of fabric which is glued to the price tag. It is logical to assume that the extra fabric is placed there so you could find the best match if you damage the said piece of clothing. Yes, you can certainly use it in order to fix a hole or a tear, but that piece is actually there to help you determine how to properly wash your new garment. It will tell you if your detergent is compatible so you will know what to expect after the first wash. Therefore, your clothes will look good for a longer period of time.