This is very timely advice for me. It sounds very easy in theory, but in practice it's been very difficult when you have lots of customers and leads pulling you

This is very timely advice for me. It sounds very easy in theory, but in practice it's been very difficult when you have lots of customers and leads pulling you in many different directions. On the other hand, you can always have a distinction between products and companies. Especially when companies acquire other companies, just to add one more product to their portfolio (e.g. Google, Facebook.) So no-one is saying that a single company can't work on multiple products at the same time. Sometimes it's just not very obvious whether something should be a feature or a separate product with it's own brand, landing page, and pricing.