Do you find yourself wrestling with your sandwich wrapper at lunchtime or is it just me? I keep a knife handy just so I can open the damned things … are they sealed with a shrink-wrap machine or do they actually employ a welding gun for the task ?

And another thing: every time I open a bottle of milk, the tiny silver tab comes off in my hands, leaving me to pick, pick, pick at the round foil cap until I can get to the precious white treasure inside …

Another favourite is the Tetrapak.
They either come with a nasty little tab like this to frustrate you:

…. or they come with fitted the Explosive Spout of Doom (TM), like this:

Either way, you end up spilling the contents either over your hand, your shirt sleeve or the countertop/floor depending where you are and in my opinion, BOTH openings have ruined what was a fantastic product design.

Did you know, the cartons were originally produced to allow milk to be posted through a letterbox ? If you open one out, you’ll find it flattens out without breaking and will take a fall of three or four feet without bursting. All you did when you got through the door was pick the thing up, reshape it and the snip a corner off. No mess, no fuss. 

But now ? Forget it.

Oh, and never ever try and open one in a car … especially if you’re driving!