I am not a fan of Jim Cramer. Simply because he plays to the cameras. And I hate the theatrics.
But he talks about a time when he was doing poorly in life. And he makes a great point that should apply to all investors. So we shall give him a listen.
Good Investors Always Save
According to Jim Cramer , good investors must:
Save. Whatever you can — whenever you can. But always save.
I agree this is pivotal for successful long term wealth accumulation.
Quite simply, a good investor always saves — period.
Learn to become disciplined and consistent in saving. Even if only a little each period.
It may take a few months to adjust to having less disposable income, but you do adjust. If your rent goes up $100 per month, you adjust. You have to. Pretend your rent, car loan, utilities, etc., went up and put the difference into your investment account, rather than your landlord’s.
How to Save
Take advantage of automatic deductions from pay cheques to make direct deposits into investment accounts. If you are able to use tax-deferred accounts , so much the better.
Sign up for dividend reinvestment plans (DRIPs)  where available. Over time, you must watch the tax liability on income earned but not received. But starting out, there should be no issues.
Note that you can invest directly in some public company shares using DRIPs or Direct Stock Purchase Plans (DSPPs). Also, if employed by a public company, there may be Employee Stock Purchase Plans (ESPPs) available. All of these provide the opportunity to periodically invest small amounts while saving on costs.
While I prefer exchange traded funds (ETFs) in general, consider open-ended, low-cost, no-load index mutual funds  when beginning to invest. Why?
Most ETFs have transaction fees when you buy or sell . There are a few no-transaction fee ETFs out there, but most ETFs charge brokerage fees. Even if you only pay $9.99 per transaction, that is 10% on a $100 purchase. If you wish to invest in ETFs (because they are cheaper than mutual funds, allow intraday trading, etc.), I recommend you accrue your periodic deposits, then purchase an ETF once you reach a critical mass (say $1000).
Mutual funds tend to be more expensive  than comparable ETFs. However, when starting out, you may choose to pay more in annual expense ratios to avoid transaction fees. If you stick with no-load funds you will not pay any fees when buying or selling (but watch for potential charges or penalties if you sell a no-load fund within a certain period from purchase date). At this stage of life, do not even consider any mutual fund with loads.
If you look for low-cost index mutual funds, annual expense ratios may not be too insane. They will be higher than the same ETF though. But in the first few years of saving, the tradeoff between higher annual costs versus paying transaction fees on ETFs may be worthwhile.
Often the initial investment index mutual funds is relatively low, $500 or $1000. This may take a few months to build to with minimal savings. But for many of these funds, once you have met the initial minimum you can usually make additional purchases for extremely small amounts, such as $50 to $100. This helps the wealth accumulation process.
Also, these small subsequent purchase thresholds lend themselves well to dollar cost averaging . An excellent tool to build wealth slowly, while reducing some of the volatility impact on your holdings. So this is another advantage of no-load mutual funds over ETFs in your early years.
But we still want to keep costs down in the long run. Over time you can sell your mutual fund and replace it with a less expensive ETF. But wait until you have adequate capital for this to make sense.
One final thought – remember our previous discussions on the power of compound returns . The sooner you start to save, the less you actually have to save over time to reach the same result. Similarly, the more you save now, the much greater it will grow over time. Look at Nicole and Matt  to see what I mean.
Even a little saved consistently when you are young will grow significantly by retirement. As Lao Tzu supposedly said, “A journey of a thousand miles begins with a single step.”
So take even a small step today and start on your path to amassing wealth.