Away in a manger

It was eating away at his conscience

Long ago and far away

She's looking a bit long in the tooth

He had a list as long as your arm

Why the long face?

He's as honest as the day is long

Another day another dollar

He was a day late and a dollar short

He always comes late to the party.

Better late than never

Never say never

It never hurts to ask

It's never to late to try

try, try again

I'll try my hardest

Give it the old college try

You are trying my patience 

You never know until you try

Don't knock it until you try it

He'll try every trick in the book

God loves a tryer 

He tried it on for size

If at first you don't succeed try, try again

Try not to wake me too early.