Basic ribbing is anything but basic when you use two different colorways and change “colors” every two rows. And, since you are only working 2 rows of each color each time, there is no need to cut and re-attach yarn with each color change. You can simply carry the yarns up as you go.

Hat--14” unstretched (20” stretched)
Scarf--4 1/2 “ x 58”
Mittens--7” around palm

Colors used pictured are…Trekking 6 Fach color #1803 & ONline Supersocke 6 fach color #1353

2022 UPDATE: Schoppel “Zauberball Starke 6” in color #2429 & Berroco “Vintage DK” in color #21197