Walmart has their Christmas displays of batteries out in the middle aisles. For a limited time, Energizer and Walmart have teamed up to help you save on batteries for the holidays. Buy two packages and get a $10.00 Walmart gift card after a mail-in rebate. Look for specially marked packages in the store. Combine the mail-in rebate offer with a coupon from the 10/27 edition of the Smart Source coupon insert and get batteries for just $0.37! That’s 94% off the regular price of $6.37!