A simple tip written down during a Graphic Design lecture at RISD. The lecturer (name forgotten) simply said "when you're writing, sketching, doodling, or whatever it is to fill blank space...design your page." What he meant was regardless of whether it's a sticky note, a business proposal, a diagram, or white board, consider your elements of design. Experiment with your aesthetic in these trivial layouts, because how you do anything is how you do everything. If it looks sloppy, disproportioned, or illegible, chances are so will the sketches for your next poster, web page, or product.