A profitable spa matches skills and demand hour by hour. Rota planning weighs booking pace, specialist skills (hammam therapy, hot stones, balayage), and wet-area capacity. Commission rules mirror reality: higher % on retail attach after facials, tiered bands for top performers, and split commissions when a junior assists a senior stylist on colour. Tips are clean - pooled or direct - with audits for end-of-day recon. Managers see labour cost per booked hour by zone (treatment rooms, salon, pool) to justify a second lifeguard on hot weekends or an extra therapist during a post-conference surge.