Encryption became fun and easy and with the various tools available today.
Here is a new one called Cloaker which is distributed under free license and allows through its interface to encrypt or decrypt any file by drag and drop on the application.
Cloaker has however some limitations like being monofile. Meaning that you will only be able to encrypt one file at a time. If you have a lot of files, you'll have to zip them or make an archive to swing it all at once in Cloaker. On the other hand, good news, Cloaker also works on the command line so you can perfectly integrate it into your scripts.
Cloaker is designed to be as simple as possible for ordinary people and is available on Linux, Mac and Windows laptops.