1. I dont buy coins which are greater than 200 satoshis
2. buy cheaper coins.. like dogecoin in bulk .. ( 10000 coins at 50 sat = 500000 sat )
3. sell them if it increases even at small price ( 10000 coins at 52 sat = 520000 sat)
got 20000 profit in small time..
Note: be carefull .. and look at the background and distribution of the coins before buying..
All strategies are the same. You buy low, sell high. It is tough to actually do this though because you are trying to predict the future. Predicting the future is about as good as gambling though.
It's a strategy but it is hard from a good strategy. This is pure guessing. Let me give you an example! I wanted to get into NEM when it was around 110 satoshis. But I changed my mind. Look at it now, sitting there around 45 satoshis.
May I suggest another strategy. Look at the coinmarketcap, when you see a coin took a 20% beating in 24 hours, buy some. In most of the cases there will be recovery of about 10%.