If you take as many screenshots as I do, Pullshot will become your new best friend. The app allows you to easily access and manage screenshots you've taken on your Android device.
Pullshot automatically displays all of your screenshots. You can manage them by hitting 'Select' and tapping the ones you wish to move or share. You can create folders and move any of the screenshots easily to and from these folders.
It lacks the ability to delete or edit screenshots, but Pullshot is useful nonetheless.