Outlook renders with Word
A client asked whether their newsletter could look like their new site, which is a completely fair question, and answering it honestly meant explaining that the biggest email client in the working world lays out HTML with a word processor.
IE8 is a client, not a browser
Browser support looks like a technical decision and gets argued as one, but it's a commercial decision with a number attached, and the number is usually sitting in the analytics if you go and look for it.
float: left is a layout system
We are building every grid on the web out of a property invented to wrap text around a picture, and the pile of workarounds we've grown on top of it has stopped looking like workarounds.