Staples offers the Papermate Inkjoy Retractable Ballpoint Pen 20-Pack
in Black, model no. 1879090, or Assorted Colors, model no. 1879331, for $4
. Opt for in-store pickup
to avoid the $9.95 shipping charge. That's tied with our February mention as 20 cents per pen and the lowest price we could find by $4. Deal ends April 30.