The Mad Cadder

Selection Cycling - Select objects that are overlapping

In AutoCAD 2011, a new feature called Selection Cycling allows for an easy selection of objects when they are overlapping. There are times when two or more objects are overlapping or drawn on top of each other and the user would like to move, copy or rotate but has trouble selecting the right object. 

The following video gives a good description on how to use Selection Cycling: Video

Reverse the direction of a line, polyline, spline or helix

Many people use linetypes with words built-into them like "GAS" or "CW". When drawing with these linetypes the words sometimes appear upside down or in the wrong direction. To fix this issue, AutoCAD 2010/2011 has a new command called "REVERSE". It is located in the Modify Panel in the Ribbon or type REVERSE in the command line.

It's pretty simple to use: Reverse Command Video