Secrets to getting good deals on hotels

I promised tips from the San Diego Travel And Adventure show and here's one from CBS Travel Reporter Peter Greenberg, The Travel Detective. 
According to Greenberg, the internet is the worst place to find a bargain on hotels. He advises people to call the manager on duty and ask for thing to be thrown in like free Wifi, parking, resort fees etc. These are the types of charges that can really add up.
My recommendation, find the hotel online, book it through a cash back or points portal and then call and try to get the upgrades and add ons thrown in.
It's old fashioned, but works for the Travel Detective.