Over the years the soap that greeted you in your Disney Resort had a cheery face of Mickey on the boxes of soap. Mickey's likeness was even 'sculpted' into each hefty bar.
Then, not only did the bar of soap shrink, but they sealed it into a challenging plastic wrap.
The shampoos with the cute Mickey ears weren't long for this world either.
Please jump in with any gaps I've missed, or earlier examples of the soap disappearing act.
This has always reminded me of Ralphie in 'A Christmas Story' : ' It'Twas the soap!'...