SIL puts glitter inside every card she sends. She's particularly fond of booby-trapping greetings cards with a mixture of fine and superfine glitter that seems to linger for ages. (I was still finding glitter all over PFB months after she sent a new baby card.) I'd be marginally less irritated -not really- if she used eco-glitter, but it's just so wasteful, unnecessary and annoying. I thought she might stop after she had DC herself, but if anything it seems to be worse. I've tried opening cards over the bin, but the glitter still explodes everywhere. WIBU to just throw her card straight in the bin without opening?