I sometimes work with remote designers, so I needed something that is flexible and fast to create. Rather than trying to spend hours using Gimp or Photoshop (

I sometimes work with remote designers, so I needed something that is flexible and fast to create. Rather than trying to spend hours using Gimp or Photoshop ( I have been down that road), this is what I do as its much faster to translate whats in my mind to something a designer can use. Get a sketch pad ( blank pages no lines ), I bought mine at a local pharmacy. Get a good mechanical pencil, they sell good ones for drafting, also get a good erasure that is different from the pencil. Get yourself a good ruler, it you want to draw to scale get an architectural ruler not an engineering ruler ( scale is for land etc so its too big ) if you do not need to draw to scale, get a metal ruler with the cork underside to prevent slipping on the paper. Get yourself a plastic stencil of different shapes. Many of these are used for flow charts or electric circuits, but find one that has the shapes you want. Draw out your proof of concepts on paper using your rulers and stencils. Label your drawing. Finally just take a picture with your phone and send it to the designer. It you have to make a change, its super simple to erase something and make an adjustment.