Materials Inventory Management — Prevent Stockouts, Avoid Overstocking

1. Divide inventory into 3 categories: daily use, infrequent use, and reserve. 2. Set minimum stock levels — automatically reorder when the threshold is met. 3. Use a simple Google Sheet: Product Name / Quantity In / Quantity Out / Stock on Hand / Expiration Date. 4. Conduct a weekly inventory check (15 minutes) — to detect discrepancies early. 5. Purchase wholesale quarterly — discounts are usually 10–20%. 6. Monitor expiration dates — expired gel polish will separate and damage clients' nails.