Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
(2, 0, D:1)
  9 gold pieces
(11, -8, D:1)
  a +0 club
(12, -5, D:1)
  5 poisoned darts
(19, 6, D:1)
  9 gold pieces
(24, 2, D:1)
  a +0 whip

Level 2 of the Dungeon
(0, 0, D:2)
  a bat corpse (skeletalised by now)
(0, 16, D:2)
  a book of Vapours
(3, 4, D:2)
  8 gold pieces
(3, 11, D:2)
  5 gold pieces

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 club
(0, 1, D:3)
  6 stones
(11, 4, D:3)
  a +0 whip
  an orc corpse (skeletalised by now)

Level 4 of the Dungeon
(0, 0, D:4)
  a jackal corpse
(1, 14, D:4)
  a ball python corpse
(4, 20, D:4)
  a +0 club
(5, -3, D:4)
  a +0 scale mail
(5, 20, D:4)
  a quokka corpse

Level 5 of the Dungeon
(0, 0, D:5)
  9 gold pieces
(0, 9, D:5)
  3 stones
(7, 0, D:5)
  a +1 flail of holy wrath
(10, 1, D:5)
  a black bear corpse
(16, 9, D:5)
  a +0 ring mail