I'm saving mine for a trip to Japan. That's right my US stimulus package is also going right to another country. Where I will buy a bunch of toys. It's a vicious cycle.
Tax refund was used to pay off a credit card bill and assorted household expenses. Best feeling ever to get rid of a credit card. Now several to go. Rebate is going to SDCC.
I think i too am in the majority and will be applying mine to my credit card. Which is sad and very 'adult' like.