Audio
Engineering, AutoCAD
DocBar
Easily switch between multiple open drawing files in AutoCAD with this tool. I assure you, once you use it, you will never use AutoCAD again without it.
SuperScript
When you can’t find an easy fix to your AutoCad (a simple plugin, button, or command), SuperScript will rescue you. SuperScript is the ultimate efficiency tool. Never go through a repetitive process again.
ToolPac
One of the most essential set of tools ever for AutoCAD users. Guaranteed to make you a more efficient designer.
XL2CAD
An awesome tool to link and import your Excel spreadsheets into AutoCAD. You can make the spreadsheet in your drawing look exactly like it does in Excel or you can make it look exactly like you drew it by hand in AutoCAD. Highly recommended.
Backing Up and stuff
Super Flexible File Synchronizer
Anyone serious about backing up their data needs a file synchronizer. This is the most powerful one available.
PIM
myLife Organized
You can find links to two of my reviews for this powerful to-do list maker inside. I use this program on a daily basis.
Windows Tweaks
Find&Run Robot
Stop using the Start Menu to run your programs. Find&Run Robot is a much faster alternative. Just type a couple of letters and off you go. Nothing could be easier.
Direct Folders
You probably don’t realize how much time you waste flipping through folders in all of your Windows programs with the “Save as” and “Open” dialogs. Direct Folders is my favorite productivity tool for this problem.
Quick Shutdown
Quick Shutdown lets you shut down, log off, restart, etc. in Windows with as few mouse clicks possible. Essential for those obsessed with efficiency.
BetaClock
Want to see more from your system tray clock? Then use BetaClock. As an extra, read about the fascinating story behind BetaClock (really, I’m serious!).