The 42-year-old actress, in a sweet Instagram post, revealed that she always keeps a "love note" in her elder daughter's lunch box to remind her little princess that her mother is always there with her.
Barrymore shared a long note on the photo-video sharing app alongside a picture which saw her holding a love-heart shaped letter, and a banana with the words "Olive I love you" on.
"@seedlingsgroup and one of my besties @aliza118 helped remind me to leave love notes and make banana art to leave in olives lunch box! A TGIF for my girl to open and see that I am with her always! Thanks Aunty Aliza! Great call! And a great way to end the week. #camplunch (sic)," she wrote.