For now what i'm doing us the basic trading strat. Buy when low, hold then sell when price goes up. With this i am able earn not so much but at least i am not losing, it is the profitable specially when you are able to buy good and potential altcoins.
My trading strategy is simple. It is by bidding for a lower price and selling it for a higher price but now i'm just buying some altcoins because i observed that their price is getting lower because of the price hike of bitcoin. So i bought a little amount of altcoins and hold it and wait for the bitcoin price to calm down.
I usually first buy coins from localbitcoins and then trade it online. The amount I invest is as low as 1 BTC and I keep a min profit margin of $10 and hence when I get this amount, I sell the coins and again buy coins from LBC. Sometimes I buy coins using Perfect Money as well and then again trade them.
Buy low and sell high to summarize what you are saying, actually for me I don't only trade bitcoin, I am more fan
in trading altcoins due to having the freedom to choose different coins and sometimes they are more volatile than bitcoin.