I only straight-line quilt and I just mark it as I go. I use a white clover chaco liner for dark fabrics and a hera marker for light. Both don't last worth a darn so that's why I do it as I go.
and a side note: when my chaco liner ran out (it's probably 20 yrs or more old) I filled it with corn starch. It's not quite as good as the chalk powder but it's a heck of a lot cheaper.