1. A machine. First and foremost, you're going to need a plastic comb binding machine. There are a ton of them on the market so choosing the right one can be challenging. A few of the best manufacturers for these products are Akiles, Fellowes, GBC, and Tamerica. They manufacture machines for every budget including ones with advanced features such as disengageable dies and depth of punch margin control. There are devices made for light, occasional use, such as the GBC CombBind C110, as well as ones made for heavy, frequent use like the DFG E-Titan. Both manual and electric devices are available. Whatever your needs and budget may be, there's a machine that's right for you.
2. Plastic combs. Next up, you'll need plastic binding combs. These supplies come in every color of the rainbow including red, royal blue, and green, so there's bound to be a color that's just perfect for your document. They range in thickness from 3/16" to 2", and they can bind books containing between 10 and 425 sheets. This makes plastic comb binding very versatile because it can be used for both short and long documents. Most combs are 11 inches long, although you can also some for A4 and legal-sized documents. (They just aren't as common.) These supplies are typically available in boxes of 100.
   
3. Covers. Your documents are going to need covers. Luckily, there are a lot to choose from. Covers come in countless covers and finishes (such as linen and twill paper), and you can even buy plastic ones. If you do choose to use plastic covers, be sure to only punch one or two at a time. Punching more can be really hard on your machine and possibly damage it.
   
4. Paper. You're also going to need paper for your books. You can use standard 20 lb. printer paper and punch the sheets with your machine. Another option is to use pre-punched paper. This paper is pre-punched with the 19 holes needed for working with letter-sized documents. Using such supplies can really help you save time, especially if your machine has a relatively low punching capacity. It can help you save a little bit of money as well, since you won't have to deal with sheets that weren't punched properly. Pre-punched paper is available in several sizes and weights. It can be bought by both the ream and case.
5. Patience. You might find that you need a little bit of patience while learning how to use your new machine. Although it isn't hard to do, some people may find it frustrating. If that sounds like you, just have patience and remember that it can take some time to learn a new skill. Odds are, you'll be able to master this skill in no time!
6. Your documents. Finally, you'll need your documents. Both personal and professional work can be enhanced by this type of binding, so print them off so they're ready to go!

Now that you know what you need for this binding method, you're ready to get started. So get that machine and those supplies, and give this great document finishing method a try!