Walt Disney Parks and Resorts recently announced that their 2009 campaign "What will you celebrate?" will include an extra special promotion.  With a valid ID (proving age) you will be able to visit any one Disney Theme Park in Walt Disney Word (or Disneyland) for FREE on that day. 

With regular adult prices for Disney Parks at $75, that's not too bad of a savings.  It's not going to be a huge selling point for large families, but at least it's something you can plan a trip around and save a few bucks.  I don't know how it would work if you purchase the different 'multiple day/park' passes.  I'm sure there will be more hotel and attraction specials that can be paired with the 2009 promo.  The free entrance alone will more likely benefit area residents, since they are the ones that usually only hit one or two parks in a visit.

Hmmm...let me go check to see if my birthday falls on a weekend next year.