[jat1]

For Java work I use the debugger a lot. When working on my Django or Python projects I use it a lot as well since its built into PyCharm. When writing code in emacs etc I tend to not bother.

I also make heavy use of logging statements, but these are usually left in for debug builds and used to help find unexpected bugs rather than active debugging.

Just recently had to start using JavaScript so I have spent some times figuring out FireBug and its debugger. I must say I was pleasantly surprised that it works well.