To avoid choice overload and better manage your time, you may want to consider simplifying your cash management plan to the most essential components for your specific needs, season of life, and financial plan.

Think of your cash as serving three main purposes: paying your everyday bills, providing a cushion for surprises, and funding future opportunities. How much you keep in each of those "buckets" naturally shifts as you move through life. Here's how to think about it decade by decade.

Everyday transactions. Start with a basic checking and savings account—these are the workhorses that keep your day-to-day finances running smoothly. As your savings grow, consider opening a brokerage account where you can put extra cash to work in high-quality, short-term investments. If you're saving for a down payment on a house, look for short-term investments that aim to keep your original money stable while earning a little income.

Your financial cushion. Life throws surprises, so it helps to have a safety net. A good starting goal is enough cash to cover three to six months of essential expenses, kept in a relatively stable, easy-to-access account. Bank savings accounts and money market funds can be great places to park this cushion.

Opportunities. Buying a house? Expanding your family? Your first minivan? These exciting milestones are great reasons to set aside "opportunity cash" and invest it in something stable, until you're ready to spend it.

Everyday transactions. Midlife is often called the "sandwich years," because you may be caring for two generations at once—teenage kids and aging parents. It isn't easy but try to keep your emergency funds high and your expenses low.

If you need extra flexibility, talk with your financial professional about borrowing options that use your assets as backing, such as home equity loans and lines of credit, or loans that use your investment portfolio as collateral. Keep in mind that borrowing against assets can put your collateral at risk if you're unable to repay the loan.

Your financial cushion. Money market accounts and funds will still be among your primary workhorses for earning a return on your cash reserves. As your need to hold larger cash balances grows, you might also explore ultra-short bond funds and exchange-traded funds (ETFs).

If you're in the top federal tax bracket or live in a high income-tax state, chat with your tax adviser about whether tax-free or tax-advantaged money market funds make sense for you. These funds invest in bonds issued by state and local governments, whose interest is generally exempt from federal income tax. Your adviser can help you compare taxable and tax-free options on an apples-to-apples basis.

Opportunities. A second home? Starting a new business? With a stronger financial base, this is often the decade when bigger opportunities come into view—and the right cash plan can help you say "yes" when they do.

Everyday transactions. Your late career and early retirement years can be a time of exploring new ways of living and working—part-time roles, consulting, volunteering. If you're trading a regular paycheck for more flexible arrangements, consider keeping more in your transactional bucket.

Your financial cushion. Keep an eye on your cash needs in retirement—such as where to park required minimum distributions (RMDs) and how to keep enough living expenses on hand so you're not forced to sell stocks during a market downturn.

If your primary goal is steady, recurring income, consider building a "ladder" of CDs or bonds—staggering their maturity dates so a portion comes due at regular intervals, giving you a predictable stream of cash barring default.

You'll also want a mix of cash reserves held in both a bank savings account and your brokerage account. Bank funds can be accessed quickly, while your brokerage account may offer a broader range of choices for earning higher yields.

If you're fully retired, a common guideline is to keep about one year of living expenses in cash, after accounting for predictable income sources, like Social Security or a pension. On top of that, keep the next two years of living expenses in short-term, stable investments. This "bucket" approach—matching your money to when you'll need it—is a goal-based cash management strategy that financial planners often recommend to help make retirement income steadier and more predictable.

Opportunities. If you have large cash balances, diversify your cash bucket. Consider owning a few different short-term investments that match your timing needs—interest-bearing savings, money market funds, individual CDs, and short-term U.S. Treasury securities.

Build a team and get help. Financial advice can be helpful at every life stage. It's especially valuable as you prepare for and navigate retirement.

• If you manage your own investments, it's a good idea to meet with a Certified Financial Planner (CFP®) regularly in the years leading up to retirement. At a minimum, try to check in 10 years, five years, two years, and one year before you retire. A planner can recommend the right mix of investments for each of these critical junctures—including how much cash to hold and where to hold it. Setting these targets in a simple written plan helps you stay the course when markets get bumpy.
• Retirement can also be a great time to start working with a wealth advisor who manages your account on your behalf, freeing you to spend more time on the things you love.

Keep an eye on inflation. Cash investments tend to lose purchasing power over longer time periods because their returns often lag the rising cost of living. So keep just enough cash on hand to meet your specific needs—and remember that most investors need exposure to stocks and other growth-oriented assets to reach long-term goals. Even a relatively attractive cash yield isn't likely to beat the long-term returns of stocks and bonds.

Keep your cool when rates are running hot.

• Don't chase promotional rates on short-term investments, because they tend to expire quickly. Instead, look for banks and brokerage providers that consistently offer competitive yields and give you more choice and control over how your cash is invested.
• And don't make big changes to your long-term investment plan based on recent news or periods of market volatility. A steady, well-considered plan can be your best friend when headlines get noisy.

When life changes, update your cash management plan. Check in periodically with your financial consultant or wealth advisor when you have questions about your cash needs. They can help you review your overall mix of stocks, bonds, and cash to make sure it still fits your goals. Investors who actively manage their cash flow may feel more confident and secure about their financial future.

By keeping your cash management plan simple, matching your money to your goals and the most appropriate cash solutions, and revisiting your plan as life changes, you can help make sure your cash is always working as hard as you do—at every age.