I use these signs on top of my whiteboard. They are hung by two rings, one in each top corner (this way you can turn the pages between which daily activity you want your students to do).
The first page is hung independently. I create detailed homework answer keys for students to check as I come around.
I have used this product to make my students more autonomous. I found they were asking too many questions about what they should be doing in the beginning of class.. which was my fault! Now the tasks are clear! All you need to do is make sure students understand which center they belong to that day (which I have a large poster for) and exactly WHAT they should be doing there.