View

1 - Pan
2 - Zoom
3 - Rotate

Or just use Alt + mouse buttons, like in Maya.

Selection

H - Frame Geometry
O - Frame Object
S - Frame Selected part

LMB+Scroll Wheel - Tweak live selection radius

Cmd+LMB Drag - (on scene object) Duplicate Object

Alt+G - Group objects

E - Translate
R - Rotate
T - Scale

C - Make Editable

M - modelling menu (emacs-like)
V - radial menu
U - selection/edit menu (emacs-like)

D - Extrude
I - Inner Extrude

Cmd+B - Render Settings

Cmd+R - Render
Shift+R - Render to viewer

LMB Double Click - in material pane to create new material

If view gets screwed up, just select another mode, then back to current. (e.g. persp→parallel→persp)

Hold Shift to insert modifiers below objects (by default they are placed in the scene root for some reason).

use Physical Sky (optionally set Composite tag, to hide from camera rays) with reflective objects
create sphere (icosphere); create MoGraph/PolyFX under it; add a MoGraph/Effectors/Random to PolyFX; set a falloff
use Atom Array for that cool wireframe look