I don't really have a strategy that I use. I just buy some Bitcoins every now and then when the price has gone down to hold for the long term. That's all I do at the moment. I am not even trading. It's purely holding what I do. I am so happy with my Bitcoin investment that I never look into any other investment. Bitcoin is more than enough for me as I believe in its full future potential.
I think, right now, the best strategy would be to buy low, sell high. You need to invest by way of buying bitcoins or altcoins and play the market by means of getting rid of them with a higher price value that when you have bought it. However, that strategy would be more applicable to those who have some coins to spare and can keep because newbie members would most likely won't have that much resources.