Sketching grapes and figs on paper and adding a bit of watercolor.
Then sketching on a fabric page of my textile sketchbook/journal. The empty page:
The pencil sketch on the reverse side:
Then I pinned on some interesting fabrics on the right side while holding the page up to the window to see the lines of the sketch on the wrong side.
As my rule for the textile sketchbook is rapidity, I'll stitch these fabrics down by machine, then go over the sketch in black on the wrong side.