Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: How to pierce mason jar lid.
Use a nail and hammer to pierce a hole in the middle of the lid.
Use a hammer and a nail to tap lid's center until it pops. Or, heat lid in hot water before screwing it on jar