I have just a few more rows to knit and then I will split the top and just knit progressively smaller Vs to fill in the open spots on front and back. Every time I knit garter stitch I am reminded how long it takes – yes it's practically mindless, but it also takes a lot more rows to cover the same area as, say, stocking stitch.
Before it's all over, I will be picking up stitches along the bottom edge and knitting a row before casting off, just to tidy things up a bit. Or maybe add a picot edge? That might be fun....