straight and narrow

damn straight

Without doubt, certainly, for sure.

draw a straight furrow

To live correctly or ethically, without deviating from the right line of duty.

get one's head straight

To clear one's mind; to think clearly.

get one's priorities straight

Synonym of get one's act together.

get straight

Synonym of clarify: to make clear, to reach an understanding.

go straight

To discontinue engaging in criminal acts; to become a law-abiding person.

keep straight

To avoid confusing or mixing up something; to keep something clear or organized.

narrow down

To make more specific.