I absolutely agree with this. I recently started working on a small web app as a side project. I was dealing with a lot of elements that were new to me and was constantly pushing the limits of my knowledge and breaking things. I realized I wasn't using the power git provided me with branches.

Once I started branching things got quicker and more effective because I could bounce between tasks without affecting my deployment (master branch). In five days of frantic coding using git branching I now have a clean easy deployment of about 750 lines, which I iterated on through four different branches and, probably over 3000 lines of code.

It's not perfect, but it's eliminated any apprehension about aggressively changing my application, and made me far more ambitious. I feel great about it.