the bottom line is.....SIMPLICITY!

"A theory is more impressive the greater the simplicity of its premises, the more different the kinds of things it relates and the more extended its range of applicability "....ALBERT EINSTEIN


so my version of simplicity is, when it comes to trading, i use horizontal lines to spot the critical point of support and resistance.

trendline and fibonacci for confirmation.(but not necessary as an entry rule)

last but not least inside bar and outside bar for entry.