Efficiency

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 rapier
(32, 26, D:4)
  a ball python corpse (skeletalised by now)
(32, 27, D:4)
  an iguana corpse (skeletalised by now)
(33, 29, D:4)
  a +0 dagger (still there?)
  a +0 hunting sling (still there?)
  18 sling bullets (still there?)
(35, 12, D:4)
  a +0 giant spiked club (still there?)
  a +0 dagger (still there?)
  3 poisoned darts (still there?)
  an ogre corpse (skeletalised by now) (still there?)
(36, 12, D:4)
  a +0 dagger
  7 poisoned darts
(39, 5, D:4)
  a +0 ring mail
(41, 1, D:4)
  19 stones
(43, 21, D:4)
  9 gold pieces

Level 5 of the Dungeon
(7, 21, D:5)
  9 gold pieces
(8, -12, D:5)
  a +0 shortbow (still there?)
  18 arrows (still there?)
  a centaur corpse (still there?)
(34, -1, D:5)
  14 gold pieces

Level 6 of the Dungeon
(0, 0, D:6)
  19 gold pieces
(14, 3, D:6)
  5 gold pieces
(15, -1, D:6)
  a +0 chain mail
(15, 0, D:6)
  a +0 dagger

Level 7 of the Dungeon
(0, 0, D:7)
  a +0 dagger
(2, -1, D:7)
  21 arrows
(5, -3, D:7)
  a +0 hand axe
  a +0 leather armour
  a +0 whip
  an orc corpse
  an orc corpse
(5, -2, D:7)
  a +0 morningstar (still there?)
  a +0 leather armour (still there?)
  an orc corpse (still there?)
(8, -1, D:7)
  a +2 whip of flaming
  a +0 robe
  a potion of mutation
(9, 5, D:7)
  8 gold pieces