Paul Irish takes us through a lot of the tools he uses when developing for the web and a very entertaining 56 minute talk. If you find yourself repeating a lot of tedious tasks while developing, this is the video for you to break out of that. This is probably one of the better workflow videos I've seen and I'll be trying 90% of what he described. If you have any other good workflow videos for web developers, please leave a comment below! I'd love to check it out as I'm always trying to improve my workflow.
The Best Workflow Video I've Seen So Far