Right now you can score this Quilted Northern® Soft & Strong™ Bath Tissue Rolls, 2-Ply, 30 Rolls/Case for $15.99. That is $.26 per single roll which is right at my stock up price of $.25 per single roll. You can pick these up in the store to save on shipping.
Just head on over to Staples and see if this is available in your store. Hurry, they are selling out fast!