Sir Lancelot via Amazon offers Prime members select Sir Lancelot's Armor Screen Protectors
for $9.95. Coupon code "LANCELOT" cuts it to 99 cents
. With free shipping
, that's $9 off list and the lowest total price we could find. (Non-members can spend $25 or more to get free shipping; otherwise it adds $5.) It's scratch-resistant and antimicrobial. Eligible mobile devices include Samsung Galaxy Nexus, Motorola Droid RAZR, Nokia Lumia 800 and more. Coupon expires after 1,000 uses.
A best bet is the Sir Lancelot's Armor Anti-Glare Screen Protector for Apple iPhone 4 or 4S (pictured) for $9.95 before coupon, 99 cents after. With free shipping for Prime members, that's $13 less than one Sir Lancelot charges direct. It includes a front screen protector only.
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.