Ever try a jigsaw with a fine blade after drilling a starter hole? That gave me way more control.

Oh man, that is the worst feeling! I had a whole set of those wire shelves give out under a bunch of car cleaning supplies. Bottles of wax and tire cleaner everywhere, it was a sticky, soapy nightmare. Learned the hard way that garage stuff is way heavier than it looks. Totally feel your pain on that cleanup job.

Forget the paper weight for a second. The real difference is how people treat the card. A flimsy one gets crumpled in a pocket, a good one goes in the wallet.