You must use Internet Explorer at work: visual proof from Google Analytics
clemesha.posterous.com
clemesha.posterous.com
Combining all versions of internet explorer together, the figures are 28% and 23%, respectively.
The only browser with a greater-than-expected boost on the weekend is Safari, but only by a very small margin compared to the increase seen by Firefox and Chrome.
All figures from GA.
We actually get more people using Opera Mini (presumably Blackberry users) than we do IE6 users.
Unfortunately we have to wait for ie 9 to get access to the nice stuff.
One site I'm aware of asked a somewhat different question. They mapped the browsers of the visitors that were buying and how much each bought, and found a completely different answer.
Though the site saw a higher percentage of IE than what was discussed here, the data showed the IE users weren't their customers. FF, Opera, Chrome and Safari all bought more and bought bigger than IE.
In reality they will properly just have to do without the rounded borders, gradients, and nice picture frames that requires working css.