M8 is the simplest of all multi-clipboard and screenshot programs. Just have it running minimized and it captures all screen shots and everything you cut or copy from other programs. It keeps the last 25 clips. When you want to paste one back, just restore M8 and click on the clip you want. When you move the mouse over the clips, you can see them in the viewer. If the clip is text, you see several lines and if it is a graphic, you see a thumbnail
Free download