One of the many reasons I adore Jessica so much is that she has this tendency to swoop in on something which I consider myself knowledgeable and totally show me up with little or no experience.
Take this floor plan, for instance. I've used Microsoft Visio for, at my best guess, 3-4 years. Visio is a sort of a poor man's architectural, drawing, and process diagramming suite. It's pretty fancy, providing you aren't designing a skyscraper or writing software to run a power plant. I started using it in college for Systems Analysis. It integrates with Microsoft Visual Studio .NET and will create real software code based on the drawings you create.
Anyways, guess who became a Visio expert in the span of only a few minutes?
We created this floor plan of our new apartment (click to enlarge). Be warned that the scale may be a little off, and our mental details might have lapsed and/or erred towards the "remember how cool this feature was" side.