Each to their own
Different people have different preferences. In American English, 'Each to his own' is more common.
Eager beaver
A person who is extremely keen is an eager beaver.
Eagle eyes
Someone who has eagle eyes sees everything; no detail is too small.
Early bath
(UK) If someone has or goes for an early bath, they quit or lose their job or position earlier than expected because things have gone wrong.
Early bird catches the worm
The early bird catches the worm means that if you start something early, you stand a better chance of success.
Early to bed, early to rise, makes a man healthy wealthy and wise
It means that sleeping well and not staying up late will help you out physically and financially.
Earn a living
To make money Ex: We need to get a good job to earn a decent living.
Easier said than done
If something is easier said than done, it is much more difficult than it sounds. It is often used when someone advises you to do something difficult and tries to make it sound easy.
Easy as ABC
Something that is as easy as ABC is very easy or simple.
Easy as beans
Something that is so easy that anyone can do it is easy as beans.
Easy as pie
If something is easy as pie, it is very easy indeed.
Easy come, easy go
This idiom means that money or other material gains that come without much effort tend to get spent or consumed as easily.
Easy peasy
(UK) If something is easy peasy, it is very easy indeed. ('Easy peasy, lemon squeezy' is also used.)
Eat crow
(USA) If you eat crow, you have to admit that you were wrong about something.
Eat humble pie
If someone apologises and shows a lot of contrition for something they have done, they eat humble pie.
Eat like a bird
If someone eats like a bird, they eat very little.
Eat like a horse
Someone who eats like a horse, eats a lot.
Eat like a pig
If some eats like a pig, they either eat too much or they have bad table manners.
Eat my hat
People say this when they don't believe that something is going to happen e.g. 'If he passes that exam, I'll eat my hat!'
Eat someone alive
If you eat someone alive, you defeat or beat them comprehensively.
Eat your heart out
If someone tells you to eat your heart out, they are saying they are better than you at something.
Eat your words