Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  20 arrows

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 club
(5, -2, D:2)
  a +0 mace
(24, -6, D:2)
  10 bolts

Level 3 of the Dungeon
(0, 0, D:3)
  a goblin corpse (skeletalised by now)
(7, -37, D:3)
  a +0 club (still there?)
  2 boomerangs (still there?)
  a scroll of identify (still there?)
(8, -38, D:3)
  a +0 whip (still there?)
  an orc corpse (still there?)
(8, -37, D:3)
  a +0 dagger (still there?)
  a +0 flail (still there?)
  a +0 robe (still there?)
(9, -37, D:3)
  a +0 hand axe (still there?)
  an uncursed amulet of faith (still there?)
  11 gold pieces (still there?)
  an orc corpse (still there?)
(11, -36, D:3)
  a hobgoblin corpse
(19, -30, D:3)
  a +0 dagger
(22, -24, D:3)
  a gold piece
(27, -30, D:3)
  a kobold corpse
(28, -22, D:3)
  9 gold pieces
(30, -16, D:3)
  an adder corpse
(33, -12, D:3)
  20 bolts

Level 4 of the Dungeon
(0, 0, D:4)
  15 gold pieces
(4, -8, D:4)
  a +0 spear
(4, -6, D:4)
  a worker ant corpse
(5, -5, D:4)
  a leopard gecko corpse
(10, -1, D:4)
  19 gold pieces