Staples: 20-Pk PaperMate InkJoy 100RT Retractable Ballpoint Pens Only $3 + Free Shipping
Staples has the 20-Pack PaperMate InkJoy 100RT Retractable Ballpoint Pens (Medium Point) in black or assorted ink colors marked down to just $3 (Amazon has the black pens for $9.89).
Plus Staples Rewards members get free shipping on all orders. If you are not yet a member of Staples Rewards program you can click here to sign up for free (you get your Rewards number instantly and you can add it to your order for free shipping).
PaperMate InkJoy 100RT Retractable Ballpoint Pens Black Ink link
PaperMate InkJoy 100RT Retractable Ballpoint Pens Assorted Ink Colors link