What are your 3 magic numbers?

Today's entrepreneurs need to be more focused than ever.  Brad Feld has coached and mentored hundreds of technical startups, and is firmly convinced that to run a successful startup he can take their business model and summarize success using 3 magic numbers - and the metric must have EXACTLY that number of measurements.  Why?  Because more than that and you're submitting to what he calls "data porn" - an overload of stimulus that doesn't let you concentrate on what's important to business success.  The three numbers won't be the same for every business, but every business can be distilled down into 3 measurements.

I strongly suggest you read Brad Feld's article, then come back here and tell us - what are YOUR 3 magic numbers?  Or do you need help finding them?  How do you work on a daily, weekly, monthly, and quarterly basis to improve your metrics with each of those measurements?