You should already know how to do basic crochet stitches.
What a great bulky scarf/cowl - you can make it any length you want. Make it short for a cowl - make it long for a scarf or cowl and wrap 2 to 3 times. With 2 strands of yarn, it is very warm and cuddly!!
2 Skeins of Worsted Weight yarn - One Solid and One Striping