4 freebies from Pharmacy online. Only bother if you already have free shipping.
The offer is 'just pay postage' on them but given that postage is $7.95 a pop and you can buy for example 10 stayfree pads for $4.95 it sort of doesnt make sense. But, they've free delivery on orders of $99 or more so if you make that threshold with other stuff you might as well add all the freebies.
You can add a max of two of the stayfrees and carefrees and one of the others. Will provide the direct links below.