#1 Tip : Put Relationships before Revenues.
Just a couple years into my business, I was contacted by a couple from NJ. They wanted to retire in Sun City, AZ and wanted me to help them. They were a small sale, and took FOREVER to make a decision and complete the process (I bet I walked dozens of properties for them). I spent countless hours on the phone with them, explaining paperwork, the process, and coordinating their relocation here with them. It was ALOT of work, and the commission didn't even come close to covering my time and efforts. However, I wanted to help them out. They didn't have anyone else here, and it tugged on my heart strings, so I did everything I could to walk them through to a successful closing and move here to their new home.
A few months later, I got a call from the wife's sister. She wanted to move here too to be close to her sister. She also had a house to sell in California (so I got to pick up a referral as well). A year later, I got a call from the sister's daughter. They were moving here too, now that their mother was here. A few months after that, I got a call from a gentleman that knew the sisters from Church. He was looking to buy a new home. And so on, and so on, and so on, it has gone on for over 20 years and counting.
The point is that putting relationships before revenues can be more valuable than any ad, or marketing piece someone can receive from you. Their loyalty, their top of mind awareness of you, and their memory of your contribution to their experience (that they share with everyone they know) will make a far bigger impression on your wallet than a magnet on their fridge with your name on it.