Efficiency

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 robe
(1, 0, D:1)
  a stone
  a kobold corpse (skeletalised by now)
(3, 0, D:1)
  a +0 club
(5, -24, D:1)
  11 gold pieces
(9, -23, D:1)
  a goblin corpse (skeletalised by now)
(16, -5, D:1)
  a +0 club

Level 2 of the Dungeon
(0, 0, D:2)
  8 gold pieces

Level 3 of the Dungeon
(0, 0, D:3)
  9 gold pieces
(1, 44, D:3)
  a bat corpse
(13, 26, D:3)
  a giant cockroach corpse
(13, 27, D:3)
  a +0 club
(15, 22, D:3)
  a +0 leather armour

Level 4 of the Dungeon
(0, 0, D:4)
  8 gold pieces
(1, -6, D:4)
  a +0 rapier
(4, -10, D:4)
  14 gold pieces

Level 7 of the Dungeon
(0, 0, D:7)
  a scroll of teleportation
(10, 11, D:7)
  a bullfrog corpse
(17, 9, D:7)
  11 gold pieces