A very useful video. I'd like to add that using a cardboard "tip" in the end of the cigarette can often be very useful for keep the end you smoke from open (especially if you are smoking substances that leave a lot of resin and clog up the end). Smoke shops sell books of these cardboard "tips" that you can roll up and place in the end of your cigarette before rolling (or you can simply tear a small piece of cardboard from the rolling paper pack or elsewhere to use as a buffer).