Having something to strive for each day keeps you motivated and working towards your destinated result. A good way to do that is to set sales goals that will give you the highest potential to earn. Depending on how many resources you can invest in reaching this, the goals should be set in a way that success is a possibility to reach. It also provides a challenge to exceed the normal returns.
What better reward is there to see that all your hard work and focus literally paid off.
