Can I ask someone if I have got this correct re photopass.
1. Buy before you go (hopefully disney send you email to get discount).
I believe this has changed from when I last did it - you used to automatically get a discount if you pre-purchased however I think now you have to wait for a discount once you have booked through Disney
2. When on holiday use the facility to have as many photos taken as possible (including water parks).
Definitely - there are plenty of photopass photographers around in all of the parks and don't forget the 'magic' pictures you can get, featuring Tink, Simba, Stitch etc. in each park. In the waterparks, you will get separate photopass cards which are on a bracelet so you don't lose them. I have to say, though, we didn't see a single photopass photographer at Blizzard Beach in October.
3. You do not see the photos until you come home?
You can go to the photo place in any of the parks (usually near the main entrance) to view your pictures. It's quite nice to do that in case any haven't come out the way you'd like - gives you the opportunity to get more as well. Quite often, thogh, we don't bother to look until we come home
4. Do they email them to you and you are only allowed so many?
When you get back, you go to the Photopass site, enter your photopass numbers (you might have more than one card if you have separate water park ones etc) and you can then view all your pictures, order prints etc.