I have a few minor Quality of Life macros.

For most of my melee classes/jobs, I have a macro I call "Chakra", due to first developing it when I was playing MNK.
/micon "Second Wind"
/ac Mantra <me>
/ac Convalescence <me>
/wait 1
/ac "Second Wind" <me>

Mantra and Convalescence are stacked like that not because they're both used, but because when one of my classes/jobs has one, it usually doesn't have the other. (i.e. My MNK uses Mantra, my WAR uses Convalescence.)

Then I have a classic all-cooldowns macro called "Blessing of Azeyma". It excludes some obvious technical cooldown buffs (Berserk, Perfect Balance, Infuriate, etc.), but I just stack "/ac "skill" <me>" for every cooldown buff in my arsenal, and I'm always adding to it every time I unlock more so I can use it with more and more jobs/classes in exactly the same fashion.