Over the years I have made lots of video tutorial for my blog followers and flip videos for my students. Every single one of them have been made using Screencastomatic. You can purchase your own yearly subscription, but I have not only never paid, but also never even set up a free account. You don't need to since you can make the video and then just upload it onto YouTube.
Watch the video above and you will be able to see how to record, add you talking (or not) to the recording and to upload it - all in less than two minutes. Go forth and make your own tutorials and teach lots of others. In a later post I'll show you how to organize your YouTube video library.