The source of pension payments is determined by the portion of the distribution that constitutes the compensation element (employer contributions) and the portion that constitutes the earnings element (the investment income). The compensation element is sourced the same as compensation from the performance of personal services. The portion attributable to services performed in the United States is U.S. source income, and the portion attributable to services performed outside the United States is foreign source income.
India has a fast-growing medical tourism sector of its health care economy, offering low-cost health services and long-term care.[256][257] In October 2015, the medical tourism sector was estimated to be worth US$3 billion. It is projected to grow to $7–8 billion by 2020.[258] In 2014, 184,298 foreign patients traveled to India to seek medical treatment.[259]
The gems and jewellery industry has been economically active in India for several thousand years.[187] Until the 18th century, India was the only major reliable source of diamonds.[183] Now, South Africa and Australia are the major sources of diamonds and precious metals, but along with Antwerp, New York, and Ramat Gan, Indian cities such as Surat and Mumbai are the hubs of world's jewellery polishing, cutting, precision finishing, supply and trade. Unlike other centres, the gems and jewellery industry in India is primarily artisan-driven; the sector is manual, highly fragmented, and almost entirely served by family-owned operations.
If we invest this financial capital well enough and do not lose it or spend it all along the way, it may even grow at a compound rate that matches or exceeds inflation and taxes. Most of us reinvest inflows from financial capital during the accumulation years. Our investment vehicles tend to be geared for total return and capital gains instead of monthly income generation.
India's mineral resources are vast.[274] However, its mining industry has declined – contributing 2.3% of its GDP in 2010 compared to 3% in 2000, and employed 2.9 million people – a decreasing percentage of its total labour. India is a net importer of many minerals including coal. India's mining sector decline is because of complex permit, regulatory and administrative procedures, inadequate infrastructure, shortage of capital resources, and slow adoption of environmentally sustainable technologies.[270][275]
Creating multiple streams of income does not mean get a second job to supplement your current income. A second job does not provide you with the flexibility and freedom to increase your income. In fact, it can hurt you when you think about it. You are trading time for money and in the long run, you lose. Instead, create something that will allow you to give yourself a pay raise when you need and want it. 
He makes a strong case for network marketing and offers the difference between investing in say a franchise for hundreds of thousands as opposed to starting your own network marketing business, which is much like a franchise with a proven system only you can start with literally nothing down and use the leverage of people. Similiar concept as real estate with some of the advantages of franchising. No capital investment with huge returns.
I read about early withdrawal penalties on IRAs/401Ks very often. Almost always with a statement of “locked up” or “can’t touch” until 59.5. I’m sure you and well informed readers as well know about SEPPs in regard to IRAs/401Ks. For those that don’t SEPPs aren’t perfect but they are a way to tap retirement funds penalty free and I will be using in the future as I have over half of my equity investments within retirement accounts. South of a mil, North of a half. Let me add that I think your blog is outstanding.
The goal of creating multiple income streams should be to maximize your potential in each category available to you.  If you are just starting out, it really isn’t reasonable to expect you to generate tons of rental income.  However, if you start maximizing your income generating potential through your primary salary, you will find yourself having excess income that you can reinvest to generate additional income streams and earn more money.
One of the most appealing options, particularly for millennials, would be #12 on your list (create a Blog/Youtube channel). The videos can be about anything that interests you, from your daily makeup routine (with affiliate links to the products you use), recipes (what you eat each day) or as you mention, instructional videos (again with affiliate links to the products you use). Once you gain a large following and viewership, you can earn via Adsense on YouTube.
Thirst for income is likely to continue with interest rates expected to stay low, keeping government bond yields low for longer and their valuations unattractive.  Looking past bonds, the prices of high-dividend shares are historically high, which limits the likelihood that their dividends will rise markedly from here.  Striving too high for an income target tends to push your portfolio further out on the risk spectrum.