Staples is offering a nice little deal right now where you buy a 16 +4 bonus pack of AA or AAA Duracell Batteries and use your Staples Reward card and you get the amount of purchase back in Staples Rewards to spend later as you wish. There is a limit of 2 per customer. If you have a Duracell coupon, this sweetens the deal, making you a money! This offer is good through Christmas, but only while supplies last, so grab them before they are gone!
Smart source had a $0.50/1 available and there is a $1.00/1 inside specially marked packages.
If you have empty HP ink cartridges Staples is doubling rewards for returning them to the store. This is an extra $6 in rewards for you to spend. If you purchase your ink there, they offer an additional 20% back in rewards on HP right now with a $50 purchase. This will cut your cost in half if you are buying their $57 combo pack.