Often neglected is the importance of your physical surroundings when you code, yet I think your environment can have more of an impact on your productivity than a fully tooled IDE. Do you like the lights full glare, half, or off altogether? Do you hate...
Visual Studio is without a doubt a powerful tool. With every iteration, it continues to improve upon itself. But as you happily hack away at all your applications, you are blistfully unaware of it's evil dark side that has been there since the beginning. It's true.