My newest cowl pattern, Nieve, is a double knit design, with tutorials for casting on, binding off and double knitting. The instructions include modification notes for making the cowl both longer and wider, and includes yarn estimates for each modification.
If you don't tend to have a lot of success with colorwork, you might really appreciate the benefits of double knitting. Yes, it's thicker and takes longer to work than a single layer, but there are no long floats to wrap or keep loose for proper tension. The end fabric is so much more elastic and reversible as well.
Worked in worsted weight yarn, this is a reasonably fast project, and takes only one skein of each yarn.
The pattern is 4 pages long, plus a cover. The motif is charted and the cast on and double knitting instruction include step by step photos.
Obligatory tortured dogs shot