Tipster Darren Bourne shares a trick he uses when designing in AutoCAD that takes advantage of the Mid Between Two Points object snap.
"I use this technique quite often; it saves me time when manipulating objects. Look for the Mid Between Two Points option on the default snaps right-click menu (accessible by pressing Ctrl or Shift + right-click). This is great if you need to pick up objects or place them exactly midway between two points. If you use the x, y, and z filters, you can place items in the middle of objects. It takes the guesswork out of placing objects. Remember that this option selects the exact midpoint, regardless of orientation, so a little care should be used also."
Notes from Cadalyst Tip Reviewer Brian Benton: This snap is very easy to use. Start drawing a line, circle, arc, whatever. Press Shift + right-click, and pick the Mid Between Two Points option. Now choose two points and your object will be drawn exactly in the middle of those two points. Why not just use the Midpoint snap? Because you don’t always have a line (or any object) to snap to. The alternative, which requires extra steps, is to draw a line between those two points. Start your command (a new line, perhaps), then snap to the first line's midpoint. Then erase the first line.