I used to carry my dot grid book and pencils around until Paper App and 53 Pencil has come to market. As soon as I start a new project, I create a new journal and draw everything comes to my mind, from branding ideas to layouts, taking notes to defining workflows... I love the freedom comes with pencil (drawing) over prototyping apps with templates. I always have my iPad with me, so anytime, anywhere, ready to note ideas…
UI Jar