Wikileaks, though technically not a wiki, provides an easy means to disseminate information that some find it desirable to share against the wishes of those who find it desirable to keep secret. Aside from the morality of the leaking itself, such a service provides a look into the activities of...
You can overlap moves and that is essential for some of the harder puzzles so use it.
Don't waste a shot breaking a piece of glass - try and hit something first.
Explosives are great, and go through solid platforms.