I'm no pro, but I do fish alot both fresh and salt, with the Florida sun, I used to respool quite often with mono, now I have started to use either power pro or Ripcord Plus from Cabella's, and I have yet to see the need for respooling, and my go to reels have line on em for over 2 years. Yea, I'm cheap.
I am forced to use spinning reels exclusively now so to control line twist I almost always use a good ball bearing swivle and then adjust the weight of the leader to suit my needs, I use florocarbon for leader material, except for Big toothy fish, which then I have to use wire.
I change leaders quite often due to wear, and retying lures and such, but it saves the expensive braid.
I just bought some of Berkley's Gorilla line in 35 pound for a couple of salt rigs, gonna try it and see how it works.