Is there a way to make Photostream take up less space on an iPad without turning it off entirely? A member of my family has a 16GB iPad which keeps reporting that it is out of space. One big occupier of space on the iPad seems to be Photostream pictures. Is there a way to a) figure out how much space Photostream is occupying on the device and b) limit or reduce that space without disabling Photostream entirely? I'd prefer something easy like a preference box I've just overlooked, but some sort of script-based hack that inserts a bunch of minimal-sized photos into the stream to take up space in the 1000 most recent but not take up much storage space could be an option.

FWIW, our main use for Photostream is to get the pictures taken on the iPad into iPhoto on the Mac automatically, and secondarily to get access on the iPad to photos taken by camera then copied into iPhoto on the Mac. I'd love to be able to still do these things but not have to give up the space to store 1000 photos on the iPad.
a) figure out how much space Photostream is occupying on the device


Go to settings
General -> Usage
wait until the top is done and then click on Photos and Camera
The next page under Photo and Camera has the space used for Camera Roll, Photo Library, and the Photo Stream.


b) reduce space.

After taking photos you can edit and crop, delete the ones that you do not want.  It saves the last 1000 photos for 30 days so if you take a lot of photos, copy them when you can.  Photo stream is there for you to easily sync your photos from one device to all.  After you have the photo, copy it to your mac and remove them from your photo stream.  After 30 days or over 1000 photos you might start to lose photos.