We tend to keep quite a full pantry as a normal matter, primarily with winter storms in mind. We've topped things up and filled some gaps so that if need be our household could go for several weeks without going out. It's all stuff we'd use eventually in any case, from canned goods and baking supplies to an extra canister for the SodaStream.
Having done that, I feel able to relax and go about life more or less normally ... albeit with an eye on the news.