I can't say enough good things about Costco's generic (Kirkland) baby wipes. They run $16 for 700. That works out to 2.3 cents per wipe. They're very durable and never irritated my son's sensitive skin.

I confess I didn't love their Kirkland diapers, but I only tried them when my son was a newborn. They do carry Huggies in bulk - no Pampers though.