Establish an investment strategy before selecting accounts. Define time horizons for immediate, medium, and long-term goals, matching them to suitable risk levels. Use a unified portfolio view to ensure each account contributes to a cohesive strategy. Inventory all holdings across accounts, listing account types and purposes, including non-brokerage assets like real estate or crypto. Track employer stock separately, as it can inadvertently increase risk.Coordinate asset allocation based on asset roles such as growth or income-oriented. Simplify rebalancing by focusing on accounts with fewer constraints, and avoid redundant exposure across funds. Apply a unified rebalancing approach for the household portfolio, using cash flows and dividends to gradually adjust allocations. Manage taxes in brokerage accounts, using tax-efficient strategies and mindful loss harvesting. Align charitable donations with your overall plan by donating appreciated securities.Coordinate cash management, maintaining emergency reserves and using selected accounts for liquidity. Avoid excess cash without purpose. Align investment choices with account roles, cap high-volatility positions, and separate them from core allocations. Coordinate risk management, measuring exposure beyond fund names, and consider non-portfolio risks.Plan withdrawals strategically, prioritizing accounts to draw from based on goals, taxable events, and market conditions. Ensure brokerage investments complement retirement accounts, avoiding overlap. Simplify implementation with a manageable set of diversified investments and standardized fund choices. Regularly review allocations, risk tolerance, and estate planning details.Track cost basis and maintain a consolidated view of holdings. Consider professional coordination if managing multiple accounts, complex tax situations, or large purchases to ensure alignment and avoid errors.