Just a note that a lot of covid tests have had their expiration dates extended. If you have older tests in your house, or you receive older tests from this government offer, you can check the actual [current] expiration date here:

https://www.fda.gov/medical-devices/coronavirus-covid-19-and-medical-devices/home-otc-covid-19-diagnostic-tests

Some tests have been extended multiple times, so double-check your expirations before throwing any out.