Rob Biddulph is an illustrator with a cause, and that cause is to make his daughter Poppy feel loved every day. To do so, he's been drawing creative lunch reminders on post-it notes and sneaking them into Poppy's lunchbox every school day for the past three years!

It started when Poppy was shifting from nursery to a primary school and Rob drew her a cute lunch reminder: "That evening she asked what I was going to draw for the following day. 600 post-its later we’re still going," Rob told Metro.

The hardest part for Rob is to come up with new ideas because he drew all of his daughter's favorite cartoon characters in the first few weeks. Thankfully, Poppy is a very curious girl and she's getting into new things all the time. Now it's the Star Wars phase, so Rob did the whole series with the famous characters.

The only problem with this idea comes from mom: "I get all the credit for the drawings when she’s the one that actually makes the sandwiches!" jokes Rob.

More info: Instagram (h/t: demilked)