There's a myth floating around that creative people are not so practical. Truth is, the most successful creative people are really highly practical. They think about what can be accomplished with what they already have. And then use what they have in new ways.
One of those things is time. The great thing about visual thinking is that it doesn't take much time. It's quick and simple. And that frees up your time to really accomplish things.
Even one little picture makes a huge difference. And there's no need for it to be fancy. Just keep in mind: The simpler the drawing, the more you'll have time to draw. And the more you practice, the faster you'll draw!