This easy and practically free method is a good way to temporary fix the scratches on your phone from blurring your photos.

It's not easy to keep that part of your phone scratch free and if your phone has gotten as many scratches as mine here's a quick fix until you upgrade your phone or a buy a replacement cover.
Using my phone as the example.
You will need
✓ Tiny drop of toothpaste.
✓ Cotton swab on a stick, like a Q-tip.
✓ Piece of soft tissue, like Kleenex.
Step ❶
Wipe the lens with the clean tissue to remove dirt or muck.
Step ❷
Using the cotton swab on stick apply a tiny drop of your toothpaste.
❸
Rub it on the lens using very little pressure for a few seconds.
❹
Using a clean tissue or micro mesh clothe wipe the toothpaste off lens.
The scratches aren't actually removed, it's not perfect, they are still there but the toothpaste has hidden them and my photos appear to be clearer than before. I have to say it does work a temporary solution.
Easy Peasy.
It's better. I love my phone and don't really want to get a new one yet.