From batteries to sliced baloney, packages impossible to open without using some kind of tool, and often difficult even when using a tool like pliers.
And many products, especially over-the-counter health products, have (1) a plastic ring around the cap, (2) a foil sheet over the opening, and (3) a wad of cotton inside the bottle.
It's time for a revolt against this sort of abuse. I'm organizing Citizens Against Stupid Packaging (CASP).
Anyone may join by sending me $5. PayPal accepted. Your name will be placed on the Founders' List.