Saltwater Leaders

Everytime I go out fishing, when I'm doing the dreaded "pickup, cleanup, and go" there is some sense of frustration in the back of my head the whole time going over what I did right and wrong and what I need to improve on and lastly what I still have to learn. I love the water and would spend every second on it, but every time I go out I come to the conclusion that I still and will always have more to learn. Many people "have" or more like come off as having it down solid and they tell you what they do, that they're way is the best way, and everyone else is doing it wrong, honestly that is nothing but ignorance. Some things work better for other people and other people focus on different things, that's what make fisherman and diverse and all the different fish in the ocean. Down here in the lower Laguna Madre there are some many different types of fisherman: there are offshore fishermen, inshore fishermen, fly fishermen, freshwater fishermen; and from there you have jetty walkers, waders, boaters, and the list goes on and on.
Although the fishing is so different and I like to do it all one thing is most fishermen can agree with is the use of the leader. A leader is a thicker piece of monofilament line or wire (varying in length depending of what you're going for) that will protect the main line so that it will lessen the chances of a "pop" when fighting a fish.