Earth Hour--Is it Useful or Useless?

Whew! Sorry again because i've been inactive for so long. Anyway, Earth Hour has already been history for about a week, but what do you think about it? I think that it has, from a long-term perspective, no use at all. Although you have saved the Earth one hour of energy, but people will then think that they have done their part and then be more careless with how they use energy. What do you think? Send in your comments.