When you get the family together it is a great idea to say 'Lets get a group photo'
Find a good spot with good lighting & a clean background.
Use fill flash if you would like to add a sparkle in their eyes.
You can also take couples together with their kids etc.
These photos will become treasured memories - you can post them on facebook and print them a copy each because not everyone has facebook :)
I took this photo at a family gathering in Wellington last week - I am top left, then my Aunty Trish then my Mum with the purple top.