[udev]

In Canada, kids can write letters to:

Santa

H0H0H0

which is valid postal code, and used to be processed by volunteers around Christmas time.

I suspect you can just write H0H0H0 and it will work.

[lurker_jMckQT99]

Same in France/Belgium, kids can write a letter to "Santa" (i.e. "Père Noël" or "Papa Noël"), no need for a postcode, or anything else than the name :-)

(it is also processed [my guess would be by volunteers too] and kids receive a proper answer letter back from "Santa, North Pole")