For anyone who does a lot of running, you will know that after a while, shoes lose their 'bounce' and they should be replaced. By the time that happens, the shoes overall can still be in pretty good shape....i.e. not good enough for running but perfectly fine for walking.
The shoes should have no holes/damage and be clean. So if you can see your toe sticking out the top then that's a no-no ;o)
There is now a collection point in John Buckley Sports. The shop is located just across the river from Cork Opera House. You'll find a map in this earlier post.
This initiative is ongoing so drop those old shoes in whenever you get a chance.
Thanks to Ruairi O'Mahony for the above info.