Here is a freebie from Amazon. The4X Immune All Season, 60 Count is $3.06. There is a $4.00 coupon to clip on the item page, making it free.
:: Clip $4.00 Coupon
:: Add Immune All Season Defense to your cart via subscribe and save
:: FREE after coupon
** If you have never used subscribe and save, you will be subscribing to order the product on a prescheduled basis. No worries, you can cancel your subscribe and save any time after your item ships. Choose 6 month intervals to allow yourself time to cancel your shipment.
Note: Amazon prices may change quickly, please check to see if this is still available before you purchase.