Procrastination is the thief of time

Definitions:
EC: Proverbial saying, mid 18th century, meaning that someone who continually puts things off ultimately achieves little.
WT: If you put off doing what you ought to do, you will end up not having enough time to do it properly.

Example:
Jim: Have you started looking for a job yet?
Jane: Oh, that can wait till tomorrow.
Jim: Procrastination is the thief of time.

People who live in glass houses shouldn't throw stones

Definitions:
WT: Do not criticize others if you have similar weaknesses yourself.
CD: This means that you should not criticize other people for bad qualities in their character that you have yourself.
UD: If you can't take it, don't dish it out
MW: Used to say that people who have faults should not criticize other people for having the same faults
MM: Used for saying that people who have faults should not criticize other people for having the same faults

Among other things

Definitions:

CL: You use expressions like among other things to indicate that there are several more facts, things, but that you do not intend to mention them all.

MW: in addition to things that are not specifically mentioned

MM: used for saying that there are other details, examples etc in addition to the ones that you are mentioning

Examples:

He moved to England in 1980 where, among other things, he worked as a journalist.

The study found, among other things, that men and women are equally at risk for the disease.

Among other things, she didn’t like the way the room was decorated.