Pattern:
Cast on 150 sts and work in garter stitch for 1 skein of yarn
Pattern Stitch:
Row 1: K25 sts garter, (25 knit, 25 purl) twice, 25 garter. It helps
to put a marker between the stitch changes.
Row 2: K25, (P25, K25) twice, K25
This gives you a reversible pattern, as it comes out to be garter, stockinette, reverse stockinette, etc....
I have been thinking about making another one, with cables between the panels. Obviously this pattern lends itself to additions.