The pattern is "Comfy" from Leisure Arts' Big Book of Quick Knit Afghans (click HERE). Since my brother's favorite color is red, I chose Lion Brand Wool-Ease worsted weight yarn, a blend of lamb's wool and acrylic, in Ranch Red. Other than adding about eight inches to the length, I followed the instructions to the letter, using size 17 29-inch circular needles holding two strands of yarn together.
I did the math; there are 216 rows, for a total of 23,328 stitches. Whew! No wonder my hands are aching. But I am very pleased with the results; I hope Eric will be, too.