If you lie down with dogs, you'll stink in the morning.

The pen is mightier than the pigs.

A penny saved is not much.

Don't bite the hand that looks dirty.

Two's company, three's the Musketeers.

Don't put off till tomorrow what you put on to go to bed.

Laugh and the whole world laughs with you, cry and you have to blow your nose.

If at first you don't succeed, get new batteries.

You get out of something only what you see in the picture on the box.

When the blind leadeth the blind get out of the way.

Better late than pregnant!