BUY LOW - SELL HIGH

How many expressions can you think of where the first words of each half of the expression are opposites or distinctly different, and the last words of each half of the expression are also opposites or distinctly different? Compound words count as two words.

Possible answers:

BUY LOW - SELL HIGH
OVERHAND - UNDER FOOT
WARM UP - COOL DOWN
MEASURE TWICE - CUT ONCE
THAT WAS THEN - THIS IS NOW
OUNCE OF PREVENTION - POUND OF CURE