Design in 3D

Designing on paper takes a bit of time and is not that accurate.  It gives the general idea of what the product will look like and has measurements, plus I draw mainly in 2D.  This weekend, I decided to try out SketchUp by Google.  It is a 3D program to design products.  At first, I couldn't get the program to design like I wanted.  There was a step that I was missing.  Usually, I can figure out a program in a short time.  So, I went to the tutorials that SketchUp have and they didn't really go into every step; quick and short versions.  Now, I'm thinking, where can I get some instructions that make sense so that I can "get it."  After some searching on the web, I found a site that explains how to use SketchUp in detail.  Here it is: SketchUp for woodworkers.  They have ten video tutorials that teach you how to use SketchUp.  Now, using SketchUp is easy and fun.