I mostly start my trades at 10 am
1st Step: Switch to D1 chart, Take note of the Minimum and Maximum of the previous day
2nd Step: Now switch to a H1 chart, if the last updated candlestick finishes above the previous day maximum, Go for a Long position
If it finishes below minimum, go for a Short position
3rd Step: If it finishes in between the Maximum and Minimum reduce the sizes of your charts in Step 1and 2 and repeat the steps.
I had come across lots of such trading strategies on forex forums but not sure their effectiveness on all types of market fluctuations. I mean I have tried one similar strategy but that did not remain as my all time favorite strategy as I found that strategy was not working when market enters into stronger bullish or bearish conditions.