I just got an email from Staples offering a free $25 gift card.
*FREE $25 Staples® Gift Cards will be issued — one for you AND one for your school — when a new school signs up to participate in the Staples® SchoolKidzsm program. Schools must be new to the Staples SchoolKidz program and sign up by June 30, 2009. Only one $25 Staples Gift Card will be issued per parent household. Only the first three parents associated with each new participating school are eligible to receive a $25 Staples Gift Card. Each new participating school is eligible to receive a maximum of three $25 Staples Gift Cards. Staples Gift Cards will be issued by July 31, 2009. Staples reserves the right to modify this promotion at any time. Excludes Alaska and Hawaii. Staples Gift Cards term and conditions apply. See card or Staples.com for details.
When I entered, I simply put "Our School Name - Homeschool". I don't know if they'll honor homeschoolers but I think it's worth filling out their form and wait to see whether or not "That WAS easy".