Customer support now includes creating a knowledge base full of self-help tutorials. Not only does it save your company money (fewer support reps), but it's actually what customers want.
To write self-help tutorials, you can use a combination of screen capture apps, mark up tools, and an editor - or you can just use Clarify.
Below is a video showing you how to write a self-help article in Clarify, publishing it to your Dropbox account, and then putting it into a knowledge base (the example is for Zendesk, but it the method will work for any customer support software).