We just did what St. Pauli suggests!
But writing is harder- because DS struggles with handwriting, not just creative writing. I always make him write thank you notes by hand for any gift he receives and he's not allowed to open said gift until thank you note is written. I'm mean like that :-) I often trick him into writing the grocery list, pretend my hands are full with a bunch of stuff and ask him to take a message down for me or have him write a note to my parents to ask them to do something for him.
It's getting harder in a world where nobody he knows as adults ever has to really write anything!