for getting the most out of Universal
Take some american stamps and postcards to use the owl post in The Wizarding World of Harry Potter. This is where you can send a letter with a Hogsmeade postmark. You can buy usable Harry Potter stamps but they were rather overprices at $15 a pack especially when we only wanted to send three postcards.
Frozen Butterbeer is much nicer than regular Butterbear (which tasted like cream soda). If you want to get a souvenir cup with your butterbeer you can and ask for the butterbeer to be put in a regular cup so you do not have to wash out your tankard for putting in your bag. Also you can bypass the cart and buy it straight from The Three Broomsticks which is a lot faster.
The mixtures of movies and rides is fantastic. The Despicable me experience is fantastic, we loved being turned in to Minions. Oh and the fart gun does smell of bananas!
The temperature really hots up around lunch time, so make a beeline for the indoor rides like Despicable Me, The Mummy or Spiderman during this time. Alternately why not take a trip to Jurassic Park and be prepared to get VERY WET!
Take a refillable water bottle with you. You need to keep drinking as you can dehydrate really fast.
Check what rides your children can and can not go on before you visit to avoid disappointment.
Consider a Universal a Express Pass which costs around £30-40 per person, and allows you to go to the front of the line once on each ride, although you get this sort of ticket for free if you’re staying at a Universal hotel.