I adore FFXIVDB (wish it was an app, hint hint). I use it all the time, to find out where to get a resource and to determine what it crafts into. What I haven't done (and should do) is take the time to go through everything currently in my inventories and research what is and is not worth keeping. As someone who is leveling all 8 DoH and all 3 DoL simultaneously (most are between level 26-30), I have a LOT of stuff clogging up my bags. Factor in, too, that I have both NQ and HQ versions of everything, that's a lot of inventory space chewed up.

If I could just clear up some of the ingredients, rocks and fish (oh, lordy, all those stinkin' fish!), I'm sure things would be a bit better.

Problem is, I know there are low-level items which come back into play on upper level recipes. I wish we could level past an item and dump the leftovers.