Comme bon vous semble = Just as you please.
Si bon vous semble = If you think fit.
Semelle
Lever la semelle devant quelqu’un = To show any one a clean pair of heels.
Sens
Cela tombe sous le sens = That is self-evident, obvious.
Sens dessus dessous = Upside down; Topsy-turvy.
Sens devant derrière = Wrong side first.
À contresens = Contrary to the meaning; In the wrong way.