TO LEND SOMEONE AN EAR

To "lend someone an ear" means to listen to someone, especially when they need it.

Are you a good listener?

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TO BE A PEACH

If someone is a peach, he or she is a very nice person.

For example: 
Thank you so much for helping me move. You are a peach!

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TO BE THE APPLE OF SOMEONE'S EYE

To be the apple of someone's eye means to be adored and preferred by someone, usually an older relative.

For example,"She's the apple of her grandpa's eye. He spoils her with gifts."

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As with many other idioms, this is a little puzzling. How do you think this idiom came to be? Why an apple?

WASTE NOT, WANT NOT

The idiom "waste not, want not" means that if you don't waste anything you will always have enough.

Have you ever regretted wasting something, missing it later?

                                                                            photo courtesy of dreamstime.com