Delight is the feeling of happiness that comes from an unexpected place. Delight builds, from an initial sense of pleasure and cresting in a giddy sensation that somehow, someone knew exactly what you would need, right here, right now.
Delight is satisfaction, visceral, in the here and now satisfaction.
Delighting your customers is hard. How do you know what they want or need? How can you please all of them all the time?
You must pick your approach carefully, and follow through with dilligence every small detail that may seem small, but adds up with the other small details to shape the entire user experience.
Consider in your solutions:
Will this feature, detail or aspect delight my customer? What will make them giddy for the chance to have used my creation?