Sounds like a classic data‑driven routine. Start with a few core columns: date, exercise, set, reps, weight, RPE, rest time, and a short note on how you felt. Add a volume column (sets×reps×weight) and a recovery score (maybe a 1‑10 after‑workout feeling). Color code the rows – red for “needs more work”, green for “good recovery”, yellow for “watch the numbers”. Tools: Google Sheets or Excel are fine, but I love a simple API script that pulls in your heart rate from a smartwatch and auto‑fills the HR column. You can also pull nutrition data from MyFitnessPal via a Zapier integration so you get a daily macro tally next to each workout. Pivot tables are great for spotting trends over weeks; just set a quick chart to see your average RPE per exercise. Remember, the key is consistency and error checking – double‑check that the same rep count isn’t accidentally carried over from a previous day. And if anything looks too “clean,” run a quick variance test to make sure your data isn’t just fitting a model perfectly. Happy tracking!