been pretty successful the last 2 months selling BTC on uptrends and buying that exact same amount of BTC near market floor, and the difference(profit) gets spent on things like silver rounds, few gold coins, a little extra fiat sitting on exchanges, etc. Most recent purchase was $100 worth of pre-1982 pennies that are 97.5% copper(post-1982 pennies are 97.5 zinc).

been pretty cool, and i suppose 'lucky' on knowing when to sell and buy. as others mentioned, if you do make a profit, diversify. it's a smart move.