Here's a tip for you, if you are new to CAD, and want to learn as much as possible:
The
F1 key
is your friend.
Each new release of AutoCAD seems to bring with it a handful of new commands that even an old-timer like T-bear hasn't heard of. What I like to do, when I'm not under a lot of pressure to get something out the door, is to bring up the online help in AutoCAD by hitting the
F1 key. In there you will find the '
Command Reference' listing
most* all of the commands available to you in AutoCAD. They are arranged in alphabetical order, so I suggest starting with the A's and working your way down. Try some of the commands out, see how they work, ask yourself how you could use it in your day-to-day drafting.
This may sound like something so simple that it doesn't even warrant mentioning, but it's often the simple things that get overlooked.
I've been drafting for 15 years. I still go through the online command reference in my spare time and I
still discover new ways of doing things that I didn't know existed.
And never, under any circumstance, be afraid to ask questions. There isn't a Swamper among us who started their career already knowing everything.
*
I say 'most' because, more than once, I've found commands in AutoCAD that weren't documented until the next release. 
