I registered my birthday online like 8 months ago, but never received anything to confirm it. Do I just show up with my license and I get in free?
Essentially, yes. At the Studios, at least, this is done at the ticket booth on the far right (when you are facing the park). The woman who was assisting me seemed put-out by the whole thing (she seemed very unhappy to be there). It was a very specific booth, though. I imagine it is similar at the other parks. Don't just get in any line, ask one of the CMs who are roving where to go.
I registered my husband's birthday online at Disney.com, when the registration process was over it gave me a certificate with a barcode to print out which I did. When I got the confirmation email they sent me the very same thing so I did not even have to print anything out again. Now I have never been to the parks since this whole birthday thing started so I can't tell you where to go in the parks etc. however the certificate I printed out states that I must have that certificate with the barcode number. I don't know if that is REALLY a MUST or merely a suggestion. Good luck and Happy Birthday.
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