Upside of having two characters?

[Riastrad]

This is a strange thing to do/ say but... I have 6 alts all with level 50's and relics for main jobs.
After I cap tomes on my main character for week (usually Wednesday night) I play another till I grow bored with them or cap tomes. It is incredibly easy to do so because of frontlines (not that I'm complaining). Granted, most of these characters are from 1.0 and had a head start on levels.

Pro tip: Place them in the same FC so that you can share items between them along with Gil. If your main ever gets low the quest rewards from the storyline will come in handy.