Thinking about its Benefits...

From that idea in your head that pops up as the light bulb above your head lights up, that piece of idea can be the source to a new project that's got to be done. Not if you're slacking on bed. Being lazy, procrastinating, that's absolute normal for human beings like us. However, if we're really passionate about this choice to create and develop, it shall start to get easier as we step up. As a hobby, it shall be a head start on creating more of those ideas for presentation and more..

-> Eventually, this thought about procrastinating and laziness may eventually be an idea for your sketch as a basic start.

As the project begins from a simple sketch on a piece of paper, with lines and scribbles of granite from your pencil, it can truly be evolved into the next step of creativity. Start simple, and the complexity shall rise as you move on. However, that shall be no problem as long as your idea is fixed and good to go. 

As generations go modern and high-tech, pencils and paper may seem old-school, but still, an elegant way of starting up your ideas in a form of a sketch or basic drawing. Otherwise, digital pens and a phone or tablet can be the next step towards better quality and quicker developments. It'll be better if your startup begins with these new available gadgets. 

The software may also vary, so I suggest that you choose the app that suits you best. This can start from simple painting or drawing. Eventually, there will be advanced 3D modelling, to create a more realistic environment for your idea to fit in. This may go on to animation, movie making, game making and more occupations available that thrive throughout the world of business, competition and marketing.