Simple BTC USD 1% per day (compound that for a couple years)

Money Flow index is similar to RSI but I feel presents more buying opportunities, however it's hard to use RSI and MFI to decide when to sell reliably - however making 1% profit per day (on average, don't try to force a trade if the RSI and MFI is high, just wait until it is low) can be done with this method and adds up over time.