The best way to wrap a blanket for Christmas is to fold it into a rectangle, making sure all the corners are even. Then, you can roll it up lengthwise and tie it with a ribbon or string. You can also add some holiday decor like bows or candy canes to make it even more festive. Finally, make sure to label it with a "To" and "From" tag so everyone knows who the blanket is for. Happy wrapping!