Just received this e-mail:
Dear valued Staples Rewards member,
Thank you for being a Staples Reward member.* We are informing you of a program update to the Staples Rewards Program when shopping in our US Staples stores.
Staples Rewards checks must now be redeemed in full at the time of purchase. If a Staples Rewards check is not redeemed in full, the remaining balance is forfeited, and balance checks will no longer be issued. For full Program details visit staples.com/rewards.
Sincerely,
The Staples Rewards Team