Well, I noticed a lot of pictures on my iPhone 5. Like you I do take a lot of pictures, then I forget about them. Just haven’t had a lot of time to look them over. Some need to be edited, while others just need to go. There are two ways in which you can do this. After you switch on the camera, and get past the password lock-screen, go to the camera Icon, Camera Roll, click on the picture, and on the bottom to the far right you will see a trash can, click on this, you can either delete Photo or Cancel.
This other tip, I learned from the internet. First thing you want to do is switch on your iPhone 5, click on the home button, this is at the bottom of the screen. Than once you get past the lock-screen, click on the camera icon. camera roll, at the top you should see all, Photo’s and video. Click on Photo’s, on the bottom you should see a small box with an arrow, click on this and just touch on each photo. A red check mark will appear on each picture. You can either share or delete these pictures.