Kmart just started a new program where for every 5 prescriptions you fill up with you same SYWR number, you get $10 back in points. I spoke to a Kmart pharmacist, you do not have to refill the same prescription. So if you fill one up for you, then you use your card and pick one up for your kids, they will both count!
Note: Oregon and some other states may not let you do this program because of state laws. I know this program is working in Utah.