You're never too old to write a letter to Santa Claus – and now, a department store is offering to donate money to charity in exchange for your note.

For the eleventh year in a row, Macy's is donating $1 for every letter to Santa for the first one million entries submitted on their website or through the red mailboxes located inside their stores.

All of the money pledged through their "Believe" campaign will be given to Make-A-Wish so the charity can grant the holiday wishes of sick children around the world.

Since 2003, Macy's has donated more than $112 million to Make-A-Wish, including more than $17 million through the annual Believe campaign, helping grant more than 13,000 wishes and impact more than 2.6 million people, including wish kids and their families, volunteers, community groups, nurses, doctors, and more.

"National Believe Day brings our Macy's colleagues and customers together to help celebrate the holiday season by giving back in a big way," said Sam Harrison, vice president of giving and volunteerism at Macy's. "The amazing wishes bring unmatched joy and hope to children and families across the country, and Macy's is thrilled to support such wonderful moments."

"We have collected millions of letters throughout the years – each one representing an individual who was moved by the message of hope, love and generosity," she added. "The result has been the creation of a holiday tradition for families across the country, and ultimately, wish fulfillments that deliver joy and hope to the most amazing children. Macy's is incredibly proud to play a part in that magic."

If you want to send a letter, Macy's will be accepting the messages until December 24th – so if you don't have to pay for stamps, what are you waiting for?

Be Sure And Send This To Everyone On Your Nice List By Sharing It To Social Media – Photo by Macy's