Call tracking is not a new idea — it has been around for almost 20 years — but it remains the single most valuable tool for understanding true return on investment for marketing initiatives. (ivet360.com)
So when understood in this way, canine blood tests serve as very valuable tools in a veterinarian's toolkit for helping to detect, identify, diagnose and even treat illness or disease. (thedrakecenter.com)
A smartphone is arguably the single most valuable tool for today's time - strapped entrepreneur. (entrepreneur.com)