To everyone +1ing the harpoon idea: do you not use the quick-gearing buttons? Use them and you'll never forget your harpoon!
Rune pickaxes have a specific grade, and there's several reasons why making them equippable is a cool idea, but harpoons?
-1 to both ideas from me. If the additional agility is a post-99 thing then maybe, since very few have trained it past 13m exp, but that wouldn't benefit many players.
Leave agility as it is exp wise. Maybe make new shortcuts or use of existing shortcuts team-lvl-wise lower than individual-wise? ie: Blue dragon one needs 80 team agility or 85 individual agility.
Every equipment should be wieldable to give space, that was the point of armor tab, why not just have harpoon/cage, hammer, chisel, moulds, tinderbox, etc.?
-1. if any team can just dump a thousand alts in tav dungeon through the shortcut, it would take those spots away from the few mains who unlocked them.
The equipment tab isn't there just to add more inventory spaces, and that one spot is not exactly desperately needed
(sorry for all this negativity, heh...)