My first big boy scarf was made from a blend of wool and cotton. I was very excited because the wool was Scottish and would later go to Scotland with me to visit its ancestral homeland.
Since it was my first, with needles, project I stayed simple:
Size 14 needles
Cast on 29 stitches
K5 P1 K5 P1 K5 P1 K5 P1 K5
P5 K1 P5 K1 P5 K1 P5 K1 P5
Keep alternating until long enough (about 6.5 feet in my case).
A nice lady at a yarn shop suggested that I paint the end of one of my needles so I could always tell if I was on an odd or even row. It was such a helpful suggestion, that all my pairs have a painted one now.