This book will give you a historical context as to why money (currency) works the way it does today.

There is so much cheap money floating around now that I suspect the game is no longer just about cash flow but about sheltering good debt.Any available real estate is likely one of the best shelters of cheap money.Since cash will almost never be this cheap again,it's common sense that hiding as much of this as possible today even in a marginal deal is a no brainer since the same cash may cost triple the interest rate within the next decade.It beats burying it in the front yard.And neither Gold nor crypto cash flows.Happy plunging inventory !

Investing in international real estate is another nice way to diversify and not have all your assets invested in the same countries and currency, which isn't very prudent.

Gift cards...the universal currency. 

You also need to know currency of rents (seller owns any past due, you start fresh).  

The dollar, like all fiat currencies is on a path to its own destruction. 

Or you could simply use websites like BlockFi and buy either crypto currency like bitcoin and etherium and collect 6% interest on bitcoin, or 5.25% interest on etherium while you (hopefully) also get price appreciation. 

For me it took about 3 months and was about $240 dollars worth of currency and hustle.

I currently have $45k saved up between savings, stocks & crypto.

I am in need of an accountant with knowledge about crypto tax.