Two things, I guess.
First, I am someone who can swim in the sense that I won't die in the water, but if you were going to time my 50m freestyle I wouldn't go very fast and my form would probably look like ass (I assume this is common among people who did not grow up near water). Now, the only reason I want to swim is because it's non-weight bearing and works my entire body harder than any other non-weight bearing form of cardio that I have tried. I don't really care about being fast in the water or anything like that. With that in mind, do you believe the quality of my pool workouts would improve if I learned how to swim properly, or am I just as well off (from a cardio standpoint) floundering around like a jackass?
Two... could someone recommend some pool workouts? You don't have to write me an entire regimen, just any tips from someone more experienced in this area would be nice. As of right now all I really do is swim lengths until I'm really tired, short rest, repeat. I'm assuming there are other things I could try from time to time.