As an engineer, when I was recently graduated and just starting out, the problem I had with financial planning is that there are just way too many unknowns. Rate of inflation? Rate of return on investments? Cost of housing during my retirement? Amount of future salary increases I might expect? Cost of starting a family? When I might start a family? Cost of healthcare? Amount of government assistance that might be available to me in old age? I'm aware of the math behind compound interest, so if I know how much money I need to have accumulated on the day I retire, given an interest rate, and time until retirement, the math I learned in engineering school taught me how to do an amortization calculation and compute exactly how much money I need to save to reach that goal. But I don't actually know any of those numbers to within even a single digit of precision! And I don't know what my savings goal should be because, at 21 years old, I can't possibly predict what my retirement expenses are going to be!
That was a while ago. I recently told my boss that I plan on leaving soon, and I won't be looking for another job. He should hire my replacement and let me help in the training. Or not, that's his choice. But my annual salary now represents such a tiny percentage of my net worth, I'm not motivated to work for another year for such a small increment.
How did I get from there to here? I didn't know any of the numbers accurately, but I did know one thing with absolute certainty: The only way to accumulate wealth is to consistently spend less than I bring in. Another thing I knew was that it's easier to control spending than income, at least in the short term. I decided to save 10% of my income.
At first I kept track of every penny, and kept a book with expenses categorized monthly. It wasn't easy, but it allowed me to make my financial decisions at home, while looking at the big picture of the whole month's expenses, instead of making decisions when out at a store, thinking only of what I wanted to buy. I always included a little "splurge" money in the budget for fun toys, but it was a controlled amount. When I went shopping, I knew how much was in my splurge account, so I knew how much I could spend guilt-free.
I never saved less than 10%. I figured that, among my colleagues, there was probably at least one of them who was making 10% less than me, and one making 10% more, and an outsider would have difficulty looking at the three of us and putting us in order. All I had to do was live like the guy who was making a little less, and I'd accumulate wealth.
As my salary increased, I let my expenses increase at a slightly smaller rate, so I was saving more than 10% of my income. It got easier as time went on. My savings rate crept up to around 20%. I got quite a bit more casual about keeping exact track of things, but I always made sure I was spending significantly less than my earnings.
I'm not a genius investor. I invested mostly in broad-based stock mutual funds, not trying to pick a few big winning stocks, but being content to accept the average rate of return of the whole market. In hindsight, if I had invested in Apple, Google, or Amazon, I would have done much better. But it's easy to forget that a lot of smart investors invested in DEC, Yahoo, Webvan, RadioShack, pets.com, or similar. I would not have been smart enough to guarantee picking Google over AltaVista or Yahoo.
I never used a professional financial planner, because I had a relative who was one, and I watched him accumulate mounds of debt while trying to sell foolish investment schemes to unsuspecting clients. Maybe they're not all so bad, but I figured I could pick my own investments and do my own budgeting.
I also bought a house and paid off the mortgage. I had to live somewhere, and I like the idea of being insulated from the ups and downs of the real estate market. Whether the price goes up or down is of no great concern to me, because I'm going to continue living here regardless. Once the mortgage was paid off, that freed up quite a chunk of money to increase my investments.
I didn't know exact numbers starting out, and I still don't know the numbers looking forward. But I will say that, over time, the compounding of investment returns was way beyond my wildest dreams. I won't tell you what my starting salary was, but I will say that, after working 39 years and saving between ten and twenty percent, letting earnings compound, I now have 216 times that first year's salary saved up. I would not have believed that when I started. Sure, there's been inflation, I've had raises, and my expenses are much higher now than they were then. The stock market could crash and wipe away half my savings. But still I think it turned out okay.