M8 is the simplest of all multi-clipboard programs. Just have it running minimized and it captures everything you cut or copy from other programs. It keeps the last 25 clips. When you want to paste one back, all you have to do is restore M8 and click on the clip you want.

If you prefer to work entirely from the keyboard, you can choose a function key to restore M8 and then paste any clip by typing the letter shown next to it. 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.