JSM Finance Notebookhttps://jsmfinance.com/Mechanics-first notes on cash flow, borrowing cost, working capital, and household reserves.Read a cash-flow statement as a movement recordhttps://jsmfinance.com/notebook/read-cash-flow/https://jsmfinance.com/notebook/read-cash-flow/Connect operating, investing, and financing cash movements to the opening and closing balance.Calculate borrowing cost beyond the advertised ratehttps://jsmfinance.com/notebook/borrowing-cost/https://jsmfinance.com/notebook/borrowing-cost/Put interest, fees, timing, compounding, and optional services on one timeline.Map the working-capital cycle in days and decisionshttps://jsmfinance.com/notebook/working-capital-cycle/https://jsmfinance.com/notebook/working-capital-cycle/Follow cash into inventory or work, through billing, and back from customers while keeping supplier timing visible.Build an emergency-fund range from recovery timehttps://jsmfinance.com/notebook/emergency-fund-range/https://jsmfinance.com/notebook/emergency-fund-range/Estimate essential outflow, income interruption, insurance gaps, and access constraints instead of using one universal month count.Build a trading-platform due-diligence sheethttps://jsmfinance.com/notebook/trading-platform-due-diligence/https://jsmfinance.com/notebook/trading-platform-due-diligence/Separate custody, execution, settlement, leverage, liquidation, access, security, and service continuity before comparing platforms.