Users of easyhits4u, what do you do with excess credits?

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Recently I'm not in the mood to write, so I spend more time clicking in easyhits4u. As a result, I got some excess credits. I don't need so many credits. Do you face similar problem? What do you do with excess credits? Since the TOS of easyhits4u doesn't allow us to sell credits, and TOS of Google Adsense forbids traffic exchage, and splash page to blog doesn't work too well, I wonder what I should do with excess credits.