take something as it comes

a little of something goes a long way

Only a small amount of something is usually required to produce a great effect.

appetite comes with eating

Starting an activity increases one's desire to continue it.

burn that bridge when one comes to it

To anticipate dealing with a problem or situation either by acting in a manner that alienates or cuts ties with others, or merely with the expectation of encountering trouble.

chalk something up to experience

To take a lesson from a bad outcome instead of grieving it.

cross that bridge when one comes to it

To deal with a problem or situation only if and when it arises.

cross to take up

Alternative form of cross to bear.

forget to take one's medication this morning

To be annoyed or irritable, or to behave in an ill-mannered way, particularly in the morning.

get something over with

To proceed to do something as soon as possible, especially so as to have something unpleasant behind oneself.