Really, its very simple.
Alt-PrtScn. Try it.
When using the snipping tool box your target then ‘save as’ the image with a name that you can find later, such as Comey sad face 1. There will be many of these and the number or date will help you locate the image you want.
Once saved ( make an image folder on your desktop and place all of your snipped pics there) for easy searching, you will be able to edit without losing. You will also be able to import to docs or drag and drop.