EDIT: I think they're out of samples now.
Oh, sure, now Costco offers people with a 12-digit membership number free Kleenex with Sneeze Shield samples. After I got sick last week and bought enough Kleenex to boost their stock by at least a few dollars.
If the link above doesn't work, try copy/pasting:
Here's to hoping you don't actually need these any time soon. This strain of the flu is killer!