The cycle time for this process is usually four weeks or more. In some cases the senior management review is only conducted once a quarter. In the first months, few may believe that you will give out the money in a timely manner, and possibly only a handful of staff will participate. As soon as staff realize you are serious, the boxes will be filled with suggestions. Establish categories for regular awards.
Categories can help staff focus and generate new ideas.
Make a big event out of awarding your suggestion scheme prizes. Some companies use lunches, staff teas or monthly meetings to award prizes. In the center is the face of the staff member who contributed. In the corners is the amount of money his or her suggestion earned. And surrounding the portrait is a description of the suggestion itself.