Cottonelle Wipes 10 ct have been reported to be selling for only $.99 at Target. If you can find them selling for the same price (probably in the Travel Section!), use this $1 Cottonelle Wipes coupon to get some for free!
Prices at Walmart are fairly comparable to Target, so if Walmart is more convenient for you, you should also be able to get them cheap or free there as well.
(Thanks Centsable Shoppin!)