six ways to Sunday

any given Sunday

On a particular day, an unpredictable outcome can occur.

cut both ways

To have both benefits and drawbacks.

deep six

To discard, get rid of, or cancel; to completely put an end to something.

from here to Sunday

Everywhere; all over the place.

go their separate ways

Of two or more people, to cease travelling or spending time together; to depart with different destinations.

have it both ways

Synonym of have one's cake and eat it too.

hit someone for six

To affect in a devastating way by some unexpected news.

mend one's ways

To recognise one's failings and attempt to remedy them.