I can assure you that this simple task, taking less than one minute each day, will provide valuable insight that directly impacts agronomic decisions. It is the most valuable piece of data that I collect, and it’s my biggest pet peeve when it’s skipped. This measurement predicts putting green performance, helps schedule mowing and topdressing frequency, and guides PGR and nitrogen application rates. It also helps me manage high and low performing greens differently. Still, there are a lot of questions about how to collect, log and use the data. This short article will help answer those questions.