be very careful not to splash the juice on white window curtains like what I did!!

Or cut it in half, squeeze it slightly (this sort of loosens things slightly) and then tap it with a spoon (cut side down) over a bowl as the seeds come tumbling out! Read this in a Jamie Oliver book I think and it works beautifully!

I learned to bang out the seeds with a rolling pin after slicing the pomegranate in half - ala Nigella.

After cutting it, remove the membrane and seeds will fall out.

Hi there! I just happen to have a very easy technique and recipes!
HERE's a link to de-seed that POM, simply! http://wp.me/p15ytG-c6

& HERE's a link for a few recipes!
1) Gingerly Spiked Cranberry/POMs: http://wp.me/p15ytG-gO
2) Spelt and POM bkfast or snack: http://wp.me/p15ytG-h6
3) POM's tossed in quinoa breakfast:http://wp.me/p15ytG-ga
4)Lime and POM Sparkling water:http://wp.me/p15ytG-lt
3)Toss the seeds in yogurt!

Fantastic Mr Fox beat me to it! I was going to suggest same, which I have not yet tried but saw on YouTube. Previously, I did these steps without submerging the pomegranate in water. It's doable, but messy, especially if you have a juicy pom. A good one is totally worth the trouble, though.

Fill a large bowl with tepid water.
Cut the pomegranate in half.
Take one half and, holding it over the bowl, force out the seeds by breaking up the pomegranate shell.
Everything falls in the water...seeds sink, other stuff floats.

As demonstrated here: http://www.youtube.com/watch?v=-qfQ3_N7S6Y