Once a can of soda has been opened, how can you keep the fizz when refrigerating?

Question

Once a can of soda has been opened, how can you keep the fizz when refrigerating?

Answer 1

I used to have these plastic caps that popped on real tight to the top of soda cans and u could just slap that on and stick it in the fridge but i have no idea where those came from.

Answer 2

u can't! cos its carbon dioxide in the can once open and left to atmosphere it loses its gas content.

Answer 3

Plastic wrap, but even with that, IT WILL ESCAPE! I suggest sitting at the fridge and watching the d**n things so that they dont get away! :D