Best with out do any thing is buy bitcoin when price down and sell when price high but you need more than 1 bitcoin to be effect
If you have lots of capital, this is really a good way to earn a good living - buying low and selling high with bitcoins and or with other altcoins. There are ordinary people out there in exchanges that are making big money just by trading and some really make it a full-time work and their main source of living.
trading is indeed the best way to get a lot of advantages. but we must remember that doing so was not easy as the theory of buy when prices down and selling when prices are high. all it takes knowledge, if you don't have skills we will be difficult to make a steady income in trading.