If the question is what to do with this money, the best answer will come from understanding what you mean by money you “won’t ever need.” If you intend to leave the money to your heirs, that’s one thing. If you have already provided for your heirs and you are sure your own needs are taken care of, that’s something else.

My strongest recommendation is that you treat this money — and all your money, for that matter — with respect.

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First things first: Unless you have set up some bizarre trust, this surplus money won’t just sit in cash for the next 150 years. Someday, it will go to somebody or some organization. 

Review your will (or create one) and spell out your wishes.Then look at the situation from the point of view of the ultimate recipient. What would they want?

Most likely they would love to get their hands on the money right away. If you’re going to keep it under your control, how much risk would (or should) they take with it in the meantime?

If, after establishing an ample emergency fund, you have money you really and truly don’t need, and if nobody else needs it either, then I think you should do whatever seems right to you.

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Here are eight ideas to stimulate your thinking.

1: If this money will eventually go to a child or grandchild, consider giving some of it to them now, while you’re around to observe what they do with it (and also so you can offer a “course correction” in the unlikely event they want your advice).

2: If you don’t want to give them the money now, but they have invested money in a traditional IRA, you could suggest they convert that IRA to a Roth and offer to pay the tax. This will let you help them without giving them the opportunity to squander your generous gift.

3: Barring either of those alternatives, you can invest the money with an equity/bond allocation suitable for their risk tolerance instead of your own. One easy way to do that is invest in a target-date retirement fund with a target year close to their 65^th or 70^th birthday.

4: If the money will one day go to an organization, you could invest it the way many long-term endowments are set up: with an equity allocation in the neighborhood of 60%. 

In this case, I see no reason to make the organization wait to get every penny from you. A properly diversified portfolio that’s divided 60/40 will have no trouble spinning off annual distributions of 5%, which you can donate. That will give the organization some benefit right away. It will let them lavish their appreciation on you. Perhaps most important, it will give them an opportunity to demonstrate to your satisfaction (or not) that they are worthy of your money.

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5: There are many interesting ways you can use this money to enhance your own life.

For one, you could spend it on consumption by buying things: real estate, clothes, vehicles, yachts, collections of whatever interests you. 

A second alternative is to spend your money on experiences (though I don’t recommend experiences that involve drugs or other risky behavior).

A third option is to thoughtfully give your money away. Unless you are a curmudgeon the likes of Ebenezer Scrooge, this could become a source of long-term satisfaction.

When I think about these three choices, it seems pretty obvious to me that in the long run, buying things will be less satisfying than the other two.

6: Invest the money in whatever way is comfortable and plan to withdraw 5% of the balance every year on your birthday. It’s a guaranteed birthday present to yourself. Keep that money in a separate savings account and keep track of what you do with it.

Then give yourself this challenge: Find interesting and satisfying things to do with that money in the following 12 months. This could be travel, education, an unexpected gift to somebody you care about, a new paint job on your home or vehicle. 

Use your imagination and promise yourself you’ll try something you haven’t done before.  

For example, you could contact a friend or relative and propose doing something together. This could be anything from “a long weekend in San Francisco—and I’ll pay” to “Let’s go to New Zealand and learn about sheep.”

7: Create something that doesn’t exist, something that will live after you. For example, set up an endowed scholarship for young people from your hometown or your church or any other population you would like to support.

These are easy to set up through a community foundation in a donor-advised fund—and your donation may be tax-deductible. You can choose each year’s winners, or let someone else do it. If you meet these young people, that’s likely to be very satisfying. 

8: By your next birthday, you may have used up all the money you received as a “gift from your portfolio.” However, if some of it is left over, give it away—to a person, an organization, or some cause you want to support. 

Doing that will reinforce in your mind that you are a generous, thoughtful person with more than you need. And this way, you can celebrate your birthday by giving a present…on the same day you receive your next “gift” from your portfolio.

These ideas, obviously, are barely the tip of the iceberg. There’s no single “right” path for somebody in this situation. In a world of possibilities, your job is to find what feels right to you.

Doing so can turn into a very satisfying reward for a lifetime of smart saving and investing.

Richard Buck contributed to this article.

Paul Merriman and Richard Buck are the authors of We’re Talking Millions! 12 Simple Ways to Supercharge Your Retirement. Get your free copy.