I like to sketch out some rough ideas at client meetings in my notebook. I have added a little colour to this one in Photoshop. It shows the key ideas of the proposal in a very concise way, it is quick, personal and can be sent by email. The top drawing shows the loft plan with Velux roof light, winder stair and b for bathroom. The middle picture is a through the wall perspective showing the stair, dormer with large window and door to bathroom and finally the elevation at the bottom of the page. Thanks to Tomato Wollivar for his old scanner : -).