As brilliant as Firebug is, I would consider switching my JavaScript debugging to Chrome if I could figure out how to get it to always re-download styles and images on every visit to the page?
When I'm testing a page in Firefox, it always gets the latest version.
But in Chrome I often end up scratching my head over something that turns out to be a simple issue of the browser caching some earlier styles or images.
Is there a way to configure Chrome to cache less while you're developing?