text:  Leave one or two off and you learn you need it the hard way. But then once you know what tools, it's like which one of these tools is the one that I should get based on quality and size. Some it's even size. Do I need a plug-in? Do I need an electric one? Do I need to have one that takes a battery? Is it good enough just to use a cord? There's all kinds of things that go into this.