Get through the silvered door:

-- Break it down.
-- Turn the apple to glass, then break it, releasing the key.  (Which
you then have to resize, etc.)
-- Turn the apple to cloth, then pierce it with the needle.  (Needle
must be enlarged to make a big enough hole.)


Get the scroll from the tube:

-- Blow tube.
-- Enlarge tube, then shake it or simply TAKE SCROLL.
-- Turn tube to glass, then break it.
-- Take a round object (either the yarn or the apple), scale it down,
and turn it to stone or metal.  Then put it into the tube and it will
force the scroll out through the other end.


Get the octahedron:

-- Fix the birdwing with a piece of cloth (either the vellum, enlarged,
or the copper placard, transformed), then fly the bird.
-- Smash the frogs with the rock; wipe the pedestal with your dress (or
some other cloth item); climb on the pedestal and take the octahedron.


Raise the stone:

-- Enlarge either the wooden tube or the needle until it's big enough to
use as a lever.


Raise the pulley:

-- Enlarge the ring.
-- Use the enlarged needle to poke a hole in a solid object (which must
be cloth at the time of piercing); then turn it into metal or stone.  If
it still doesn't lower the pulley, try enlarging it until it's heavy
enough.
-- Turn the dress to metal.


Pushing the button on the staircase:

-- Shrink the workbox and wear it as a thimble.
-- Push the button with the needle (enlarged).
-- Type >PRESS BUTTON repeatedly until the game allows you to do it.


Getting into the tower:

-- Feel the walls while in the crawlspace; go up, then south; either
>JUMP repeatedly, or >SHOUT once.
-- Take a large, round object of stone or metal (the yarn or the apple
will work for this).  Place it in the hole.  Go up.
-- Take a large, flat object (the vellum scroll enlarged, or the copper
placard.)  Turn it to glass.  Place it in the niche so that it reflects
light down the hole.  Take a large but not-round object of metal or
stone and place it in the hole, then push it towards the back with a
large stick (either the enlarged tube or the enlarged needle.)


Endings:
-- Through the flat mirror.
-- Through the concave mirror.
-- Scrying glass (turn the yarn into glass).
-- Through the magnifying glass into one of the pictures on the Vista or
Cistern walls.
-- Into the mirrors in the Dome of Broken Light.
-- Into the water in the cistern or the surface of the lake.