shipping fish

I know this is a controversial topic of sending live fish/invertebrates through the post, however, I have came to the conclusion that if I take all the precautions - double bagging, using polystyrene boxes, heat packs, using next day shipping services, etc - then I would be able to successfully...

Ok now i don't want endless instructions on how to ship fish, or links to videos unless these videos tell me what bags or shipping processes to use. I am going to breed guppies and ship them. Where or what bags can i use, If you know of a place to get them. Also what shipping methods should i...