Help yourself

help (oneself) (to something)

To serve oneself (something); to take, consume, or indulge in (something) freely or without permission or restraint. There's plenty of food in the kitchen, so please, help yourselves to more. The vagrant they had given shelter to for the night helped himself to the family's prized set of silverware. The maps at the information kiosk are free, so tourists are welcome to help themselves.
See also: help
Farlex Dictionary of Idioms.

Help yourself.

Please take what you want without asking permission. Sally: Can I have one of these doughnuts? Bill: Help yourself. Mother led the little troop of my friends to the kitchen table, which was covered with cups of juice and plates of cookies. "Help yourself," she said.
See also: help
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • wash (one's) hands of (someone or something)
  • wash hands of
  • wash one's hands of
  • wash your hands of
  • wash your hands of somebody/something
  • wash your hands of something/someone
  • for (one's) (own) sake
  • for sake
  • keep in sight
  • keep sight of (someone or something)
References in classic literature
Goad on your bullocks, and never more pray to me for help, until you have done your best to help yourself, or depend upon it you will henceforth pray in vain."
Fables
'Help yourself,' said the Admiral, 'help yourself; and let us drink to a new existence.'
Tales and Fantasies
Remember what I say; be kicked by him; account his kicks honors; and on no account kick back; for you can't help yourself, wise Stubb.
Moby Dick I LXVII
Of course, it is not always so bad as that, but you know it often is, and I say 'tis a mockery to tell a man that he must not overwork his horse, for when a beast is downright tired there's nothing but the whip that will keep his legs a-going; you can't help yourself -- you must put your wife and children before the horse; the masters must look to that, we can't.
Black Beauty
Carry that basket for me and help yourself to its contents if you are hungry."
The Marvelous Land of Oz
You've got to understand them; you can't help yourself. That family my cousin was with has moved away somewhere, or I should try and get in with them.
Bundle of Letters
"The Reds will think just as I thought -- that you, being like nine out of ten of us, not overburdened with worldly wealth, had taken this way of earning an honest penny to help yourself through the year.
Anne of The Island
Hawkins, help yourself, and back to your post to eat it," continued Captain Smollett.
Treasure Island
You should do it because you can't help yourself, because it's natural to you, because the man in you is crying out for heroic expression.
The Lost World
You won't be able to help yourself. You haven't realized what a crushing thing evidence is.
Uneasy Money
But don't take any notice of him; just set him upon my apron, and help yourself to the money.
Yellow Fairy Book
If you're persuaded that it's time for luck to turn, as it certainly is, and find that you haven't means enough to try it (and that's where it is, for you know, yourself, that you never have the funds to keep on long enough at a sitting), help yourself to what seems put in your way on purpose.
The Old Curiosity Shop
'Some brothers are not loved over much; and some love - but help yourself, Copperfield!
David Copperfield
'You can't help yourself. I have tried hard for you, but all to no purpose.
Oliver Twist Or The Parish Boys Progress
"Now, please help yourself, Diana," she said politely.
Anne Of Green Gables