After exploring double knitting in May, I can
How to Knit the Tubular Bind-Off for 2x2 Rib
I Cord Bind Off [5 Easy Steps!]
Alternate Cable cast-on for 2x1 & 1x2 ribbing — Woolly Wormhead
Invisible bind off for double knitting - Easy method [+video]
I Cord Bind Off [5 Easy Steps!]
Original Knitting Patterns
Two-color cast on method (video + photo tutorial) - Knitgrammer
How to Knit the Tubular Bind Off - Knitting Stitch Dictionary
Three Needle Bond Off Knitting - Invisible Seams Knitting