I needed a new watch battery, and posted a thread in OT about it. Someone mentioned this Walmart deal so I am just passing it along. I went into a Chicago 'burb Walmart, and for $3.00(includes taxes) I got a new battery, plus free installation. It took the lady about 5 minutes to change the battery in my Wenger Swiss Army watches, and I watched her the whole time to make sure everything went smoothly. This is a YMMV because I've only used the service in the Chicago area.