I have done the light/dark bag method. It was initially out of my "comfort zone". I used up a lot of those odd shaped strips that way. Sew them on squares of muslin-no stretching because of the bias edges.
The scrappy quilt I liked the best was cut in the "tumbler" shape in an equal amount and I sewed strips of light/dark/light/dark. Then laid the strips on the floor and played until I liked how it looked. Then labeled the rows so they wouldn't get mixed up and sewed them together. The end result will surprise you. That may be a more comfortable method for some.