We live in a former swamp.
We have mosquitoes, every kind, every size, every flavor. They LOVE us.
Banana-man bought me sheet metal cutters, the straight trim type (they also come in a left trim and right trim so be careful when buying and don’t confuse the trim with left-handed vs right-handed – that’s different).
These $7 cutters blast through all that impossible packaging; clamshells, children’s toys, twist tie closures and pretty much anything else.
Buy a pair; especially if you have children.