The token is a very useful tool to enhance one’s motivation in a certain activity. But sometimes it is not so useful or effective when the token is perceived as meaningless or insignificant. For example, I once used a convenient store coupon to solicit fitness club members to complete my survey package. Unfortunately, the survey package was so thick with many questionnaires, scales, and inventories but the coupon was only 3 US dollars. So most club members refused to participate my survey.