re: Braided Line - How often do you change/maintain yours?

No offshore setup for me so i don't have that problem.

For inshore / freshwater I can go at least two years before switching. The only thing i do is remove 3-6' every so often to remove frayed sections.

After a couple years I usually "reverse" the braided line. Basically if you tie your line to another reel and spool it up you will have the old line on the bottom of the spool and the top of the spool will be the fresh untouched braid at the very bottom of your current spool. Works well and you can get some extra time on the line.