I'm a little frustrated right now.....

I know that I haven't posted in a while, my friend Mr.E. likes to remind me about that, but I felt the need to post today. In my classroom, I have my paper area. I am very lucky that one of my parents works for a publishing company, and at least once a year I am lucky enough to receive a huge paper donation. This is the paper that I use for the "free draw" box. When the students are finished with their project, they are allowed to get free draw paper and draw whatever they want. Now comes the frustrating part. I have a box clearly labeled with "free draw" on it as shown below. But there are always at least 5 students in every class that always grabs the good drawing paper instead. I have discussed this numerous times with the students, and they all can tell me where the free draw paper is, but there are always a few that just won't do it. when I talk to them about it, they always respond with "oh, I didn't know". My question is how can I possibly make it any more obvious? I don't have the room to move the paper somewhere else, or to keep the good paper locked up. Grrrrr......