CopyQ is a completely free and open source clipboard manager which provides a ton of extended functionality to the Windows Clipboard.
With CopyQ, all you have to do is copy and paste as you normally would and the program will save what you have copied in a history which is accessible from within the program, accessible from the system tray.
The program also allows for searching clipboard activity and can even edit entries. Clipboard items which are no longer needed are easily deleted.
Version 2.7.1 is a freeware program which does not have restrictions and it's free so it doesn't cost anything.
Virus and Malware Tests: The program has been tested with several antivirus applications and has tested clean of viruses, malware or trojans.