Show tips on startup

Shortcut keys

You can save an incredible amount of time and mouse movement by using shortcut keys to activate your most frequently used tools. SketchUp displays default shortcuts next to many menu items. You can set your own by going to the SketchUp Preferences and choosing the Shortcuts pane. Try and remember this list of 5 of the most frequently used tools. Hopefully you'll be hooked and wonder how you ever worked without using shortcuts!

Select
-
Space Bar
Line
-
L
Move
-
M
Rectangle
-
R
Push/Pull
-
P

....and don't forget about a 3-button mouse for quick model navigation.