The eldest was the easiest. She had fallen under the spell of Harry Potter that year and spent at least 4 months walking around with her head in a book, bumping into lamp posts and past friends, occasionally looking up to see where her dinner was or to eye her mother disdainfully for asking her to put her book away.
So what better way to ease the poignancy of finishing the last book in the series than a trip to Warner Bros. Studios - the home of Harry Potter.
And as my sister lives just 20 minutes away it couldn't have been easier to plan.
The look on Kaya's face when she got the voucher was, as they say, priceless. But when we actually got to where the bus pulls up - it was even better.
And it continued to get better and better throughout the day.
We explored the sets of each of the films, learning about dragons and owls and special effects.
We were taught how to wield a wand and fly a broomstick.
We wandered down Diagon Alley, visited Privot Drive, and jumped aboard the Hogwarts Express.
And of course we got to taste actual butter beer. This is how good it is...
The detail involved in the making of the films is mind blowing. Like for example the tens of thousands of wands that were individually inscribed with the names of their owners. Or the handwritten letters that the owls carried - which turned out to be too heavy for them so had to be done all over again on lighter paper. Now that's commitment.
The sets, the costumes, the detail, the magic - it really was amazing.
For a fan, or indeed their mum, it's definitely a highly recommended experience.
A transfer couch service runs from Watford Junction Station
Loads of parking available at the studios
Staff are all extremely helpful
Queue to get in - approx 25 mins
Tour time - approx 4 hours
A family ticket costs £118
Disclosure: Warner Bros Studios gifted us tickets to the tour in exchange for a review. All words, pictures, daughters and opinions are my own. For more information head over to their site.