The iPhone is an excellent camera—which is why it's easy to let your photos pile up into a massive collection over time. If you're looking to clean up your iPhone's photo stash (or your iPad or iPod Touch), there are a few ways to quickly delete and organize images to your liking. First, here is how to erase multiple images at once using the iPhone's Photos app: Launch the Photos app. Tap the "Select" button in the upper right corner of the screen. Choose the photos you want to get rid of. You can do this by tapping each individual photo or by tapping one photo and then dragging your finger over the other images you'd like to delete to select pictures more quickly. Once you've selected all of the files that should be disposed of, tap the trash can icon at the bottom of the screen. Sometimes after you delete an image, it might still appear on another Apple device if you have My Photo Stream turned on. This is a feature that syncs images...