My mind is in the gutter

Thinking through the details of our latest project has kept me away from my sketch book - so I am showing here the drawings from my other sketch book which I have for projects. I try and work things out  and then pass them on to my colleagues to CAD into construction drawings - it is a good habit to keep so that you have your ideas with you in one place.
Having said that, nothing beats sketching out design  solutions on the back of old blueprints with a colleague - I do better work in a team.