at target you could get 640 sheets for $4.49 after the $2 off couponhttp://www.target.com/p/kleenex-everyday-facial-tissues-160-count-4-pack/-/A-12965113
It's $0.009 per tissue. Target is cheaper $0.007 per tissue (that's before 5% deduction for RC holders), and free shipping.
That's whats posted here