Ice for "emergencies"
(Almost) everyone knows the situation: Spontaneously a fun drinking party is agreed with the buddies but none of the participants thought of ice cubes for the "cocktails"!
In such urgent "emergencies" drive my pals and I (assuming it can / may still drive a ...!?) Always McDonalds, Burger King or the cinema. They have professional ice cream machines, including ice creams in harsh quantities. Normally, a large bag of ice cubes with little financial input, sometimes in vain, to have.
Certainly not every store, but fortunately we did not happen that we ran out empty handed.