Re: Rule number 0
"Hows that work in the real world though? Does this not mean you have to reboot into Linux everytime you want to check email"
No. It means you boot into Linux or BSD in the first place.
If you need something that's Windows only and doesn't run under Wine you either reboot into a Windows partition or, preferably, Windows on a VM. And you'd be surprised to find out for how many people that evaluates to never.