Target Dollar Spot Center Supplies

Has anyone else discovered the amazing supplies (for $1!) for classroom centers? Kelly and I found these for $1 each this week at Target.

I got many of these for my grandson and some addition, subtraction, multiplication, and division card sets for my third grade class. Kelly is moving to Kindergarten, so these will be very easy for her to set up as centers as she gets used to the Kindergarten curriculum.