Is there a foolproof way of opening up a pitta bread ...

[2sugars]

... so you actually get a pocket you can put stuff in? Rather than it falling apart/having so many holes in it you have to throw half the pack away?

ooh good question
I have a feeling I've been told lightly toasting them helps, but not sure I've ever made it work

microwave or toast until it puffs up.

Wow, thank you! Had never heard of that one. Although I have visions of dd1 coming home complaining that her pittas were stale ...

I don the gauntlets and the protective goggles before I attempt to open a toasted pitta, lightly or otherwise.

Its a well known scientific fact there is nothing hotter on God's earth.

I'm sure every time I've tried they've crumbled as I tried to cut them

I cut them in half across the width then jiggle them about abit to open the pockets.

yes heat it in whatever way you want until it billows out.

I also find using your most blunt knife with a rounded end best, or just using the non-sharp 'back' of the knife.