Indispensable Developer Tools

I will keep updating this post every time I come across something new...

For the time being, here is what I know of/use:

I managed to lose the excel file where I had this typed in.
For the time being, am adding my last findings:

• UltraSearch (file search)
• SOAP UI
• Instant EyeDropper (extract color code from any pixel in the screen)