Originally Posted by 2Tired2Shift
On a really hot day you can tap a cartridge and let it vent - it'll get very cold and frosty - and drop it in your water bottle to chill things a bit.
I have a special bottle top with a cartridge fitting. So I use my cartridges to recharge my Coke with fizz when it goes flat. And then I drop in the spent casing... ice cold fizzy Coke on a hot day.... the pause that refreshes...
OK, not really.