My stock idea is, very simply, the #1 stock on my watch list right now. The company sports most of the characteristics of past big winners–fast sales and earnings growth, healthy profit margins, a unique position in a mass market, and a huge opportunity for growth going forward. It’s Concur Technologies (CNQR), a relatively small ($193 million in revenue) company whose software allows companies to save 50% to 80% on travel-related costs. The idea is simple–it’s computerizing and automating many of the aspects of booking, tracking and reporting travel expenses. No more paper-based expense reports! And the service is...