What are /r/famitracker's favorite Products & Services?

From 3.5 billion Reddit comments

Best advice I could give is download modules from other people and mess around them to find out what does what. You can also look at the Famitracker Wiki for for information on how certain things like effects work (it's down right now but a mostly-complete version still exists on archive.org): https://web.archive.org/web/20210316182909/http://famitracker.com/wiki/index.php?title=Main\_Page