I’m copying Tania Ho (her version is gorgeous!) and cast on 82 sts, plus 2 extra. Instead of slipping the first stitch of every row (as in the original), I’m slipping the last two sts of every row with yarn in front. This creates a very neat knitted-on i-cord edge. I may also fudge with the increases – will see how it goes.
Must find buttons for this, too! Otherwise it wouldn’t be very Buttony, now would it?