Went through my stuff and came away with a rough count, though I'm sure I missed stuff. Some of it could be shed, but a lot of it is just the natural end result of starting things and breaking up the grind so it's not quite so oppressive. I'm currently maxed selling on the market where I'm:

1) vendoring anything that would generate less than 100gil over vendoring
2) priced-adjusting daily to be lowest on market, more often feels jerkish
3) keeping at least some slots continuously moving

Code:
69 Relic Weapons (in-progress)
18 Relic Tools (in-progress)
10 Eureka Armor (in-progress)
 4 Bojza Armor (in-progress)
22 Glams
35 Non-craftable, non-store Dyes
20 Skybuilder's Stuff
20 Raid Token Sets (for glams, incomplete)
90 EW Materials
 2 Fantasia
 3 Keepsakes
35 Map Materials
 3 Orchestration Mats
The above is over 330 slots before bait, other tokens, etc. Also, a lot of my relic stuff are in my Armoury Chest. That's just the stuff that isn't.