There is a strategy, that is always profit.
You need a little big equity for it, means not $50-100. But $300-500 is Ok.
Here it goes:
Select a volatile pair... Lets say GBP pairs or Gold. The more volatile, the faster you finish your trade.
Open a trade, let's say buy with 0.01 and set TP to 20 pips, no SL.
If it goes up, you're done. But if it goes down, 10 pips, open a sell with 0.02 with 20 pips TP
Now, if it goes down, you're done. But if it starts going up, when 10 pips unfavor, open a buy again with 0.04 and 20 pips TP.
Any pair, cannot range with 20 pips. It must move to any direction. Even if its ranging, it has to breakout. No pair can stay in range. In this strategy, movement to any direction is win.