Find the order size that costs the least — without a spreadsheet.
Every order you place costs something, and every unit you hold costs something too. Most teams either over-order (cash sitting on a shelf) or under-order (fees piling up from too many small POs) because nobody ran the math. Economic Order Quantity is the classic answer — the order size that minimizes total cost — and it takes ten seconds to compute if you have the right tool. That's the kind of small fix I like making.