Sorry. I have a stupid question (yes, they do exist). How do I make folders to put my work in?

Cut some heavy card stock 17" x 21" .and fold in half. Place work in folder. (heheheh) I think its in your studio where you have those options..I dont remember but I think it is

Yup, it is in your studio. Which you can find after you hit the "draw" button.
Topleft corner, looks something like this:
User Folders
Current folders:
Create New Folder