This deal came from Common Sense With Money: buy an Energizer rechargeable battery charger at Walgreens for $7.99 (sale price through Saturday, $9.99 regular price afterwards). You'll get back a $5 rebate from Walgreens (#20) and you can also submit for this manufacturer's rebate for $5. There was also a $0.75 or $1 coupon in the 12/14 SS for Energizer batteries or a flashlight. Since the package contains batteries, I'm thinking it might go through (check the codes to be sure). Overall profit: $2 without coupon, $2.75 - $3 with coupon
If your store is out, make sure you get a raincheck for the $7.99 price. And if you can't make it to the store before tomorrow, its free after rebate at the $9.99 price.