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.