Trump Spending No Money on Ads

I noticed Trump has spent very little money, if any, on campaign ads so far.
Beware Democrats!
He thinks he'll save all his money and blitz the airwaves a week prior to the election so there won't be recovery time for Secretary Clinton.
That's how illusionists and carnival barkers operate- swoop in at the last second to redirect your attention, pulling off what appears to be the greatest trick since Houdini.
Don't let Trump's Cliffs Notes version of politics win this election.
I also suppose it's possible he has no money to spend, as donors are mostly smart enough to know he isn't about even helping the rich, only himself.