Amazon has a sale on their adhesive free privacy film. This appears to be the cheapest this size has been. Get an additional 35% off the sale price of $7.69 for the 17.7x59" sheet bringing the price down to $5.00.
Shipping is free with prime or when spending $25. Must use code CIQFVIFR at checkout or click the "Redeem" link under the promo.
Rating is 4.5 out of 5 and fakespot score is an A. See link for more product details.