One of the best incentives for employees is recognition, reward them by communicating face-to-face about how great of a job they are doing. They will continue trying to please you. Another great incentive is to give them flexible hours. Other incentives that worked were giving employees prime parking, pizza parties, flip flop/jeans day, day off work pass and new office chair. Just be creative how you reward your employees and they will work hard. An incentive I don't recommend is cold hard cash.

One of the best incentive programs I have seen is award perks where individuals can buy products with points. For sales people, they would receive points based on quota achievement. For staff employees, it was reward based on recognition by peers and leadership. They would be noted for work effort and achievement outside the scope of their daily job. We had a Bravo program where people could be nominated for various levels of awards. I'd be happy to talk through this further if necessary.