I'm coming to think that "strategies" are a poor value way of looking at trading. They are inevitably over-concerned with entry patterns, so most are highly dependent on some off-chart indicator or indicators, many have complicated rules that fail to account for changing contexts and most are focused on intra-day trading.
Once you start down the strategy road, "better" strategies must logically be novel, more expensive, more esoteric and more complicated. And whatever strategy you have borrowed, bought, built or stolen must logically be second-rate, so you are driven to hop to the next one, which will be "better". Guess which way I think that leads.
My "strategy" is not to find good buys, it is to be in good trades. Which means being long in uptrends and short in downtrends. Basically, if you see a major forex pair chart with the 20EMA above the 50EMA and both rising, I am in there long. And making money.
Where to get in is completely unimportant, which makes off-chart indicators pointless. I get out if price closes below the 3EMA, but I'm setting a new buy order as soon as I've clicked the "close position" button.