Earlier this year I started the P90X workout regimen. The program is 90 days long and emphasizes “muscular confusion” through a variety of cross-training exercises. Throughout the program, Tony, your lovable yet demanding trainer, reminds you again and again to write down how many reps you do. Whether it’s 10 pull ups, 30 squats, or 15 push ups, you’ll be reminded to “write it down” each and every time. It gets monotonous, sure. It seems silly at first, yes. But in the end it’s probably the single best way to ensure you get the most out of the program. The worksheets are designed for quick comparisons of your success. With these worksheets, it’s easy to track your progress over time and see that your upper body is getting stronger or that your lower body is remaining stagnant, for example. With this information, you’ll know what areas need work and what areas need rest.