Starting Sunday 6/22, you can buy the Accu Chek Nano Monitor at Walgreens and get a mail-in rebate for the full price of $14.99. You will also get 3,000 Balance Rewards points worth $3.75 added to your account, so your net cost will be free with $3.75 profit. These are also good items to donate to charity.
Find all the Walgreens Deals here for 6/22 to 6/28