getting noticed

So how big do you have to write something for someone to run by it and still be able to read it. I always wonder how big Habakkuk had to write, Habakkuk 2:2
Then the Lord answered me and said: Write the vision; make it plain on tablets, so that a runner may read it.
But more than that I wonder what we Christians should be doing to get noticed in this speeding world of busy people.
I imagine the prophet (and probably quite incorrectly) chiselling his message into an enormous piece of stone and getting quite frustrated that God wanted it quite that big - I wonder whether he moaned a bit saying "Lord, if only you had let me do this smaller, I would be finished by now and I could be doing something else."
A combination of listening and real, back-breaking effort. Hmmm......