Here's something handy I discovered about the Reminders app. I used it for the first time to do a shopping list for the supermarket. I made a new list within the Reminders app on my iPad, which through the power of the cloud, ends up on my iphone for easy reference at Tesco. As I checked off the items on the shopping list, they went in to the completed list. This is the cool bit...when you uncheck them from the completed list, they go back on the shopping list ( not the generic Reminders list), meaning that with time you can build up a comprehensive list of all the stuff you buy, and only need to type the name of the item in once, then simply check and uncheck as required to keep a current shopping list on the go.
This is fast becoming one of my favourite apps.