Finish the following sentence with the best choice: To make an ice pack yourself without spending the money.

Choices:
- Just soak a clean sponge in vodka, place it in a zip-top bag, and freeze.
- Just soak a clean sponge in water, place it in a zip-top bag, and freeze.

Answer:
Just soak a clean sponge in water, place it in a zip-top bag, and freeze.