Sometimes, just before playing an A note on the piano, my middle and high school orchestra director would tell the class, "Let's get a good A."
It was a good, concise way of saying, "It's time to tune your instruments, so listen carefully to this note, and tune your instrument accurately to it."
Outside of orchestra class, it's a good way of reminding yourself, "Learn what you need to learn, and apply it as well as you can to work and other situations in front of you."