In flash people become very frustrated and give up too soon because they can't do something fast enough, or easy enough.
Well thats why shortcut keys were invented, but theres no easy way to find these keys except for by experience.
So I'm here to help you out and save you some time.
It would probably be good to keep this page bookmarked for quick reference. Here you go:
Tool Shortcuts
(A) - Subselection
(B) - Brush
(E) - Eraser
(F) - Fill Transform
(H) - Hand Tool
(I) - Eye Dropper
(K) - Paint Fill
(L) - Lasso
(M) - Zoom Out
(N) - Line
(O) - Oval Tool
(P) - Pen
(Q) - Free Transform
(R) - Rectangle Tool
(S) - Ink Bottle
(T) - Text
(V) - Arrow
(Y) - Pencil
(Z) - Zoom In
Timeline Shortcuts
(>) - Next Frame
(<) - Previous Frame
(F5) - Add Frame
(Shift+F5) - Delete Frame
(F6) - Add Key Frame
(F7) - Add Blank Key Frame
(F8) - Convert Into Symbol
(Home) - Goto First Scene
(End) - Goto Last Scene
(Page Up) - Goto Previous Scene
(Page Down) - Goto Next Scene
(Enter) - Play
(Ctrl+Enter) - Test Movie
(Ctrl+ 0[zero]) - Rewind
Editing Shortcuts
(Ctrl+G) - Group
(Ctrl+U) - Ungroup
(Ctrl+B) - Break Apart
(Ctrl+Shift+V) - Paste in Place
(Ctrl+D) - Duplicate
(Ctrl+A) - Select All
(Ctrl+Shift+ A) - Deselect All
(Ctrl+K) - Align Window
(Ctrl+Shift+S) - Scale and Rotate
(Ctrl+Up Arrow) - Move Forward
(Ctrl+Down Arrow) - Move Back
(Ctrl+Shift+Up Arrow) - Bring to Front
(Ctrl+Shift+Down Arrow) - Send to Back
(Ctrl+T) - Modify Font
(Ctrl+Left Arrow) - Narrower Letter Spacing
(Ctrl+Right Arrow) - wider Letter Spacing
Misc. Shortcuts
(F9) - Show actionScript Window
(Ctrl+L) - Show/Hide Library
(Ctrl+M) - Modify Movie Properties
(Ctrl+E) - Toggle between Edit Movie & Edit Symbol Mode
(Ctrl+Shift+L) - Show/Hide Timeline
(Ctrl+Shift+W) - Show/Hide Work Area
(Ctrl+1) - Goto 100% Zoom
(Ctrl+2) - Show Frame
(Ctrl+3) - Show All
(Ctrl+Click+Drag) - Duplicates a shape
Thats all I can think of for now, if you have some contibutions, feel free to post them.
$tev0