ASP.NET - YSlow and ASP.NET: 100 points "A" grade is possible

Just in case if somebody doesn’t know what YSlow is? YSlow is Firefox add-on integrated with Firebug. It analyzes web pages and tells you why they are slow. You can run it on you project and see your grade. You can do some easy improvements and maybe even get D grade. However to get higher then D grade becomes a real challenge. Below I will describe how I got A grade (100 points) on my web blog application.