Since this is just a practice sock, you can finish off just by cutting the yarn, leaving a long tail, threading it onto a yarn needle, slipping all the stitches on and pulling tight.
But since this is a practice sock, you might as well practice the standard way of closing off a sock, known as grafting or the Kitchener Stitch.
Once you've closed off the toe you have a perfect little sock to stuff with potpourri and put in your sock drawer!

