Sketching for multiple purposes

Sketching wasn't my thing, I always preferred to work directly from my mind, now since I had been using my Moleskine notebook to draw while talking on the phone or as a stress release I found some drawing quite useful for clay work, and there you go 

I'm half way to fill my sketchbook now and this great habit is giving me ideas when I need to use it on my clay and have a mind block. 

When on the phone I'm more conscious of using plain paper a good pen or pencil and make sure to keep all my designs in one place.