The idea is simple:
Choose one subject and draw that subject every day. You will get better.
I'd heard about this idea from my mom who read about it somewhere - a professional artist picked just one subject and created an artistic variant of that subject every day for a year.
The toucan. Why? Because I like its comically large nose. And I do tend to like tropical things. And I didn't like the toucan artwork available for sale, so if I ever do get good, I think I could find a niche market for this.
How it's going:
I'm getting better. By posting these I am clearly not afraid to show that I didn't start off with a mastery of this subject.