Striped chunky knit pink and brown scarf

I've just finished this, a really warm wool scarf for the winter. It's so easy I would recommend this for a brand new beginner project. I used Lamb's Pride (is it just me or is that a really cute name for yarn?) bulky yarn, 14 stitches per row, size 11 needles, all knit (garter stitch), switching my four colours randomly. I wanted a plain-jane, vintage looking, a-kid-could-have-made-it style of scarf.

Even though it's simple, beginners often ask about switching colours. All you do is this: when you are ready to join a new colour just cut off the current colour leaving around 3 inches of yarn, then use a reef knot to join on the new colour. A reef knot is left over right and under, then right over left and under. Then just start knitting with the new colour. That's it. I weave in the ends with a big sewing needle, such as an embroidery or tapestry needle, any needle that's big enough that you can thread it with your yarn. After you weave in the ends (ie. "sew" the yarn over and under loops of your knitting) trim off the end.

Now I just can't decide if I should add a fringe or not. Any opinions on that?