I have access to almost every platform other than Windows here, and I can use just about any browser here except IE for Windows. Often, I use an instant messenger client to ask people in Canada, Europe and Asia to look at the site in different browsers and such (and to get an idea of what things look like in Windows) and report back to me so I can see how the site performs for people in far away places.
The current designs on the ernieball.com are tabled designs so they work on just about anything. The code and design was done prior to my employment here. The Battle of the Bands website is done with a CSS based layout and as such I fight browsers all day long with that site. Fix something for one browser, break it for another. That's the price you pay for nice, semantic markup.
Remember all the pretty stuff you see and the layout on the website is done by our stellar artists and designers in the art department. I just do the behind the scenes stuff with the code.
And occasionally I create an error that makes my boss email people a hell of a lot of times and on those days I'm just a CodeLemur.