Compare the two ends of this Plaid scarf. The end on the right, (begun with long-tail CO), is all stocking stitch. The design on the other side is the opposite colourway. By the far end of the scarf I had transitioned into texturing the the grid. I also added an extra row to the horizontal bars to add definition.
The scarf has a simple geometric pattern which is easy to follow and designed to give newer double-knitters lots of yarn handling practice. The biggest obstacle to joyous double-layer knitting is working out how you prefer to hold the yarns.
The scarf is pictured in Kauni EFL and HH1 (solid).