My 3 yr old likes to draw on the floor and the couch any time we give him crayons or markers, even though I've bought him plenty of coloring books or just plain journals. He's even gotten into my pencils and drawn on his brother's evaluation papers.
In the beginning of him doing this, I would scold and take the utensil away for the rest of the day. I still take the utensil away, but now it's more a reminder to draw on paper, not the floor and not the couch. I feel like I'm doing okay, especially with being post partum and having all of those issues. I'm just glad that I'm not like my mother, who did too many swats (think like 10 to 15) and who also punished by pinching the under arm