I'm still working on my crypto currency trading strategy, but this is a welcome component to consider. With the volatility of crypto currencies, I definitely intend to include some variant of dollar-cost averaging.
This is an old stock trading strategy that consists of buying the same dollar amount at regular intervals regardless of the price. If the price is high, you automatically buy less. If it is low, you buy more. The result is that the average price you paid for of your holdings is less than the average market price.