Sketchup... its a very intuitive program to use up to a point and then it is let down by really average documentation and a lack of good quality tutorials. This article is in no way a solution to this just a place where i will add some basic info on operations in the program that i had to search for the answer.
The sketchup show podcast is highly reccomended`for some good tips, however the shows are a little disjointed from one episode to the next.
Here are some handy sketchup tips to help you reaching for the search bar:
Align axis: option click on axis to bring up the move dialog box then rotate axis to align axis to north in your document.
More to come!