Coupon Geek has posted a deal on T.P. at Walmart. Scotts Naturals bath tissue 4 roll pack is $2.68 each and Scotts has a printable coupon for $1.50 off 1 4 rolls or larger here, you will need to share your email to print and you can opt out of receiving communications from Scotts. The price may vary by region, but this would make it only $1.18 after coupon. Remember you can print the coupon twice.
P.S. Be sure to print out Walmarts revised coupon policy here, it is a good idea to print it out and carry it with you.