The best screen protectors for iPhones will keep your screen clean and scratch free and is essential to keeping your iPhone investment pristine and they do not even have to cost very much. 

EMPIRE 5-Pack LCD Screen Protector with Lint Cleaning Cloth for Apple iPhone 3G 8GB 16GB [EMPIRE Packaging]
Amazon Price: $0.01
List Price: $5.99

5-Pack Premium Reusable LCD Screen Protector

You will get 5 individually packaged screen protectors for a super cheap price.  There is a protective film on both sides of each protector so that you do not get your fingerprints on the protector while applying it to you iPhone.

EMPIRE 5-Pack Premium Reusable LCD Mirror Screen Protector with Lint Cleaning Cloth for Apple iPhone 3G 8GB 16GB / 3G S 16GB 32GB [EMPIRE Packaging]
Amazon Price: $1.95

5-Pack Premium Reusable LCD Mirror Screen Protector

These are the same screen protectors as the ones above but with a cool mirror finish so that unless your phone is shining through it just looks like a mirror. It gives your iPhone 3G or 3GS a cool flashy looks but is super cheap.

One hint is to turn your iPhone brightness up all the way if you are having trouble seeing it through the mirror but generally it is pretty easy to see.

Case-Mate Screen Protector Film 3 Pack for iPhone 3G, 3GS
Amazon Price: $0.01
List Price: $9.99

Case-Mate Screen Protector Film 3 Pack

These fit perfectly for an iPhone and you get 3 so when the other one wears out you can put a new one on without buying a new pack.  They are also super affordable.  Take your time putting them on and they will probably out like your iPhone 3G or 3GS and the next pack you buy will be for a new iPhone.

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