I finally committed to growing one and am a few months in (no shave November is for choirboys) and am looking at a way to groom my stache.
I've noticed that I keep having to lick and finger-groom it to keep parts out of mouth, so I know it's time to keep it more kempt. I have already trimmed it twice to give it volume and keep the hairs out. I think wax is the next step.
Now I know some waxes are good and some are bad, and I know some are scented and some are colored, so please give me the brand that is preferred so I can have a great mustache!